| 
				
				CONFERENCES
 2012 Conference
 
					
						| 
						 | 
						
						METER-CLASS
ASTRONOMY 
Telescopes, Instruments, and Observational Programs
 
 2012 Hawaii 
Conference
 Canada-France-Hawaii Telescope 
						Headquarters
 January 20-22, 2012
 
 Pre-conference Tours January 
18-19, 2012
 Click here to 
						visit conference website
 |  
						| Overview Co-chairs: Russ Genet and Bruce 
						HolensteinTour of Volcanoes National Park 18 January
 Insider’s tour of Mauna Kea Observatories 19 January
 Mauna Kea observing session (HP) evening of 21 January
 
 This conference was devoted to the development, 
						instrumentation, and use of meter-class telescopes—with 
						emphasis on lightweight, low cost telescopes in the 
						aperture range of 0.5 to 2.0 meters. Advances in 
						lightweight, low-cost meniscus, foam glass, and 
						spin-cast epoxy mirrors were covered, as were low cost 
						active primary and secondary mirror systems. The 
						structural design of lightweight telescopes was examined 
						with a detailed look at a recently designed portable 1.5 
						meter telescope that weighs less than 500 lb. 
						Instruments and observational programs well suited to 
						meter-class telescopes include high-speed photometry, 
						near IR photometry, low resolution spectroscopy, and 
						polarimetry. There was a special session on visual 
						observations with meter-class telescopes. The conference 
						concluded with a panel discussion on the current status 
						and future prospects for meter-class telescopes, 
						instruments, and observational programs.
 
 Email contacts: RussMGenet@aol.com, BHolenstein@Gravic.com
 |  
						| Agenda Pre-Conference Tuesday 17 January, Early 
						Arrival Get Together5:00 PM Early arrivals gather for drinks and watch 
						sunset, no host dinner at Bongo Bens, 75-6819 Alii 
						Drive, Kailua-Kona HI 06740, 808 329-9203. It is an easy 
						walking distance from the Royal Kona Resort, 75-5852 
						Alii Drive, Kailua-Kona HI 96740, 808 329-3111.
 
 Pre-Conference Wednesday 18 January, Tour of 
						Volcanoes National Park
 8:15 Meet in Lobby Royal Kona Resort for tour 
						participants
 8:30 Depart Royal Kona Resort for Volcanoes National 
						Park
 10:00 Main museum/Thurston lava tube/crater rim
 12:00 Lunch Kilauea Lodge, 19-3948 Old Volcano Rd, 
						Volcano Village HI 96785,  2:00 Jager Museum
 3:00 Depart Jager for Kona
 5:30 Meet at Bubba Gump’s in Kona for no host sunset 
						dinner, 75-5776 Alii Drive, Kailua-Kona HI 06740,
 
 Pre-Conference Thursday 19 January, Tour of 
						Telescopes on Mauna Kea
 8:15 Meet in Lobby Royal Kona Resort
 8:30 Depart Royal Kona Resort for CFHT HQ in Waimea
 9:30 Depart from CFHT Headquarters in Waimea for HP on 
						Mauna Kea
 10:30 Arrive HP Visitor’s Center
 11:00 Lunch at HP
 12:15 Depart HP for summit
 1:15 Visit 10 meter Keck gallery (20 minutes, both 
						groups)
 2:00 Group #1 tour Gemini telescope / Group #2 tour CFHT 
						(tours 45 minutes)
 3:00 Group #1 tour CFHT / Group #2 tour Gemini (tours 45 
						minutes)
 4:00 Depart summit for CFHT HQ Waimea
 5:00 Depart CFHT HQ Waimea for Kona
 6:30 Open Dinners
 
 Conference Day 1, Friday 20 January
 7:45 Meet at Royal Kona
 8:00 Depart Royal Kona Resort for Waimea
 9:00 Coffee at CFHT HQ for early arrivals
 9:30 Session I Telescopes I
 Welcome, Christian Veillet, Director CFHT
 Conference administration, Bruce Holenstein, Gravic
 Self introductions around the table
 The Alt-Az Telescope Initiative: a personal perspective, 
						Russ Genet, Cal Poly State Univ.
 10:30-10:45 Break
 The nature of telescope design, Mel Bartels, BB 
						Astrosystems
 PlaneWave Instruments developments, Dave Rowe, PlaneWave 
						Instruments
 Control systems: new life for old telescopes, Dan Gray, 
						Sidereal Technology
 12:15 Lunch
 2:00 Session II Telescopes II
 The Cal Poly 18 Direct Drive Robotic Telescope, Richard 
						Berry, WVI *
 Structural analysis of 1.5 meter telescope, Laura Rice, 
						Cal Poly State Univ.
 Telescope structures: 1.5 meter cell, Donny Mott, Idaho
 3:15-3:30 Break
 Overview of 0.75-m telescope project and requirements, 
						Bruce Holenstein & Russ Genet
 0.75 meter-class telescope design panel discussion 
						Moderator: Bruce Holenstein
 Panel members: Howard Banich, Mel Bartels, Donny Mott, 
						Dave Rowe
 
 Conference Day 2, Saturday 21 January
 7:45 Meet at Royal Kona
 8:00 Depart Royal Kona Resort for Waimea
 9:00 Coffee at CFHT HQ for early arrivals
 9:30 Session III Observational Programs
 21st century astronomical drawing, Howard Banich, Rose 
						City Astronomers
 A new way of looking at things, Mel Bartels, BB 
						Astrosystems
 Restoring order to deep sky discovery, Steve Gottlieb, 
						NGC/IC Project
 10:45-11:00 Break
 Lightweight 0.6 meter mirror, Olivier Guyon, 
						Subaru/Arizona Mirror Lab
 Light bucket spectroscopy, Jon Saken, Marshall 
						University
 Undergraduate astronomy at Evergreen, Rebecca 
						Chamberlain, Evergreen College
 12:15 Group photo/lunch
 2:00 Session IV Optics, Cameras, and Telescopes
 ATM optical testing, Dave Rowe
 The SCOTS optical test, Peng Su, University of Arizona 
						Optical Center
 High time resolution astronomy developments, Bruce 
						Holenstein and Russ Genet
 3:15-3:30 Break
 The 36 inch telescope on Mauna Kea, Josh Walawender, 
						University of Hawaii, Hilo
 Hexapod telescope design, Vince Truman et al, Cal Poly 
						State University *
 
 Observations on Mauna Kea (HP) Must have warm 
						clothes!
 HP Guide: Christopher Erickson, Cell 907 250-2506
 4:15 Depart CFHT HQ Waimea parking lot for Mauna Kea HP
 5:15 Eat at HP
 6:30 Observing at the HP visitor’s center
 8:30 Depart for CFHT HQ in Waimea
 9:15 Depart CFHT HQ for Kona
 
 Conference Day 3, Sunday 22 January
 7:45 Meet at Royal Kona
 8:00 Depart Royal Kona Resort for Waimea
 9:00 Coffee at CFHT HQ for early arrivals
 9:30 Session V Lightweight Mirror Developments
 Electrostatic active secondary mirrors, Brian Fehrman, 
						South Dakota Mines and
 Technology *
 Home Spun Mirrors, Wayne Young, UK *
 Starstone mirror developments, Andrew Arigema, OTF 
						Designs *
 Surface errors in heat formed mirrors, David Davis, 
						Toledo Scope Werks *
 11:00-11:15 Break
 Spin-cast plastic mirrors, Michael Every, Rochester 
						Institute of Technology
 Spin-cast epoxy mirror developments, Lisa Brodhacker, 
						Lander University
 Optical testing of epoxy mirrors, Dylan Holenstein & 
						Bruce Holenstein, Gravic
 Laser activated primary mirror, Joe Ritter, Univ. of 
						Hawaii Institute for Astronomy
 Active secondary project update, Alex Thompson, Jeff 
						Jarema, & Bruce Holenstein, Gravic
 1:00 Lunch
 2:30 Session VI Tech Transfer
 Development of a portable 1 meter telescope with active 
						primary, Mike Connelley, NASA IRTF
 Advanced developments overview, Russ Genet, Cal Poly 
						State University
 Tech Transfer Panel Moderator: Doug Simons, Gemini 
						Observatory
 Panel members: Mel Bartels, Russ Genet, Joe Ritter, Dave 
						Rowe, Jon Saken
 4:30 Van departs CFHT for BBQ/observing session
 5:30 BBQ/Observing session in Waikoloa Village (Cliff 
						Livermore’s place), 68-1812 Pau-Nani, Waikoloa Village 
						HI 96738, 808 989-7451.
 8:00 Van departs Waikoloa Village for Kona, Conference 
						adjourned
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						| 
						 Volcanoes National Park Tour
 | 
						 Volcanoes National Park Tour - Lunch!
 |  
						| 
						 Gemini / Canada-France-Hawaii Telescope Tours
 | 
						 Lunch at the 9000 ft Astronomers Center to aclimatize
 |  
				
				2010-2011 Conferences 
					
						|  | 
		Telescopes 
		from AfarRobotic Observatories
 February 28-March 3, 2011
 Waikaloa Marriott
 North of Kona, Big Island of Hawaii
 Sponsored by the
 Canada France Hawaii Telescope
 & the Alt-Az Initiative
 Just Completed
 (Click here for Website)
 |  
						|  | 
LIGHT 
BUCKET ASTRONOMY CONFERENCETechnology Developments
 and Research Programs
 
 Canada-France-Hawaii Telescope Headquarters, Waimea, Big Island of Hawaii
 31 December 2010 - 2 January 2011
 
 Co-Chairs
 Russ Genet (Calif. Polytechnic State Univ.), and Bruce Holenstein (Gravic, Inc.)
 Local Hosts
 Josh Walawender (Univ. of Hawaii Institute for Astronomy), and Sarah Gajardhar (CFHT)
 Conference Webmaster
 Cheryl Genet
 
 Mauna Loa / 
Mauna 
Kea pre-conference tours
 29/30 December
 Volcanoes National Park post-conference tour - 3 January
 
 Click here for 
						conference website
 Click 
				here for a printable pdf  information version
 |  
						| 
			Conference Goals 
			  
			The goals 
			of the conference are two fold.  First, to explore how new 
			technologies can be applied to developing lightweight, low cost, 
			meter class “light bucket” telescopes and their instrumentation.  
			Second, to describe the scientific research programs that would most 
			benefit from telescopes which are so low in initial and operational 
			cost that entire telescopes or even arrays of telescopes can be 
			dedicated to specific research programs. 
			  
			What is light bucket 
			astronomy? 
			  
			  
			Jacquelyn 
			Mitton, in the Cambridge Dictionary of Astronomy (2001), 
			defines a light bucket as “A colloquial 
			expression for a flux collector.”  She defines a flux 
			collector, in turn, as “A telescope designed solely to 
			collect radiation in order to measure its intensity or to carry out 
			spectral analysis,” mentioning that, “No attempt is made to form an 
			image so a flux collector can have a more crudely figured reflective 
			surface than a conventional telescope.”  We have extended Mitton’s 
			light bucket definition to include photometric CCD “imaging” with 
			low quality, low cost optics (typically one wave or less as opposed 
			to quarter wave or better optics).   
			  
			Light 
			bucket telescopes excel in comparison with smaller aperture, more 
			expensive, diffraction-limited telescopes when the sky background is 
			a small or nearly negligible source of noise. This situation can 
			occur when: (1) the object being observed is very bright, (2) the 
			integration times are very short and hence photon arrival noise 
			becomes important, (3) scintillation noise becomes a dominant noise 
			source, (4) the bandwidth is very narrow or the light is spread out 
			as in spectroscopy resulting in significant photon arrival noise, or 
			(5) noise from the detector is dominant, as it can be in the near 
			infrared. 
			  
			Science 
			programs well suited for light bucket astronomy include: many high 
			speed phenomena, including lunar and asteroid occultations; fast 
			cadence, high precision CCD photometry; near infrared 
			diaphragm-limiting or area photometry; low to medium resolution 
			spectroscopy; and polarimetry. Finally, we note that an array of a 
			half-dozen light bucket telescopes equipped with very high speed 
			photometers could, with their many two-telescope combinations, 
			provide images of the surfaces of nearby stars via intensity 
			interferometry—a quantum-mechanical effect that occurs at 
			sub-nanosecond timescales.   Such an array would be a modern 
			extension of Hanbury Brown’s pioneering research, decades ago, with 
			his two-telescope interferometer in Narrabri, Australia. 
							
							
							Special thanks to Bruce Holenstein's friends Jonathan and Nancy Sechrist at 
							Makahiki Farms
 for
							sponsoring the special
 “Dark Night Observing” roast 
							Kona coffee
 for the conference
 http://www.makahikifarms.com
 
			  |  
						| 
						Conference Talks»» Talk slide pdfs 
and audio-visuals ««
 are linked beside the speakers below
 Special 
						TalkKepler: Are There Any Good Worlds Out There? Jon Jenkens 
						
		
		
		
		Talk slides  Music
 
 Light Bucket Astronomy
 Light Bucket Astronomy, Russ Genet and Bruce Holenstein 
						
		
						
		
		Talk slides
 Visions for Large Light Buckets, Russ Genet and Bruce 
						Holenstein  
		
						
		Talk slides
 Aberration Theory and Prototype Mirror Experiments, 
						Bruce Holenstein  
		
		
						Talk slides
 Signal-to-Noise of Program Object Measures, Bruce 
						Holenstein  
		
						
		
		Talk slides
 
 Innovation
 Innovation and the American Amateur Spirit, Jack Hitt  
						
						
						Talks slides
 The Other Side of Innovation, Chris Trimble  
		 
		
		Talk slides
 
 Meter Class Portable Telescopes
 Portable Computerized 1 Meter Telescope, Russ Genet, and 
						Reed and Chris Estrada  
		
		
		
		Talk slides
 Meniscus Mirror Portable Telescope, Olivier Guyon
 Portable 1 Meter Telescope, Mike Connelley
 
 Kilns and Slumping
 Low Cost Kilns, David Davis and Andrew Aurigema 
						
		
		
		Talk slides
 A Kiln for Slumping Mirrors, Olivier Guyon.
 
 Foam Glass Composite Mirrors
 Foam Glass Composite Mirrors, Andrew Aurigema 
						
		
		
		Talk 
		slides 
						
		
						
		Video links
 Lightweight Mirror Experiments, David Davis  
		
						
		
		Talk slides  Video 
		links
 Tessellated Foam Glass Mirrors, David Davis  
		
						
		
		Talk slides
 
 Mirror Coating Technologies
 Deposition Silvering, Sagar Venkateswaran  
		
						
		
		Talk slides
 Silvering and Overcoating Experiments, Bruce Holenstein, 
						Sagar Venkateswaran,
 Mike Holenstein, and Dylan Holenstein   
		
						
		
		Talk slides
 Introduction to Sol-Gel Processes, Lisa Brodhacker  
						
		
		
		Talk slides
 
 Passive and Active Primary Mirror Support Systems
 Low Cost Air Bag Mirror Support System, Steve Taylor 
						
		
		
		Talk slides
 Active Primary Mirror Support Experiment, Mike Connelley 
						
		 
		
		Talk slides
 Low Cost Fixed and Bimorph Correctors, Bruce Holenstein 
						
		
		
		
		Talk slides
 
 Telescope and Observatory Control Systems
 Sidereal Technology Control System Developments, Dan 
						Gray  
		 
						 
		
		Talk slides   
						
		Movie
 Dedicated Systems: Small Telescopes in the Era of Big 
						Science, Josh Walawender  
		
		
		Talk slides
 The Case for Automated Telescopes, Josh Walawender  
						
		
		
		
		Talk slides
 
 Near Infrared Aperture Photometry
 Progress Report on a J/H(Ks) Aperture Photometer, Greg 
						Jones  
		
		Talk slides
 Telescope Design Considerations for Near Infrared 
						Photometry, Mike Connelley  
		
		
		 Talk slides
 
 High Time Resolution Photometry
 Experiments with High Speed Cameras, Bruce Holenstein 
						
		
		
		
		Talk slides
 A High Speed Electrometer for Photodiode Photometers, 
						Bruce Holenstein  
		
						 
		
		Talk slides
 Methods for Time Stamping Analog and Digital Video, 
						Frank Suits  
		 Talk 
		slides
 Occultation Timing Accuracy: Dependence on Frame Rate 
						and S/N, Frank Suits  
		 
		
		Talk slides
 
 Occultation Photometry
 Missions for Portable Meter Class Telescopes, David 
						Dunham  
		 
		
		Talk slides
 Lunar Occultation Theory and Practice, Bruce Holenstein 
						
		 
		
		Talk slides
 Observing Trans-Neptunian Objects with Portable 
						Telescopes, Marc Buie  
		 
						 
		
		Talk slides
 Portable Occultation Telescope Requirements, EliotYoung 
						
		
		
		
		Talk slides
 Portable Occultation Systems for Studies of Pluto and 
						Triton, Leslie Young and Cathy Olkin  
		
		
		
		Talk slides
 Webslides
 (These are large file so please be patient)
 |  Back to Top 2008-2009 Conference 
					
						|  Celestron kindly donated an 8" Telescope as
 a 
						door prize.  Celestron's Kevin Kawai makes 
						presentation to happy winner Dennis Hoofnagle
 | Galileo's Legacy
 Conference
 A celebration of 
						small telescopes
 and astronomical research
 four centuries later
 
 
 Makaha 
						Resort
 Waianae, Oahu, Hawaii
 December 31, 2008 
						- January 5, 2009
 
 Inaugural Speaker - 
						Susana Deustua
 Keynote Speaker - Arne Henden
 Luau Speaker - Richard Berry
 
 Photo Gallery Wrap-up
 |  
						| 
						 In 1609, Galileo turned 
						his newly made telescope toward the heavens and, in 
						rapid succession, discovered the mountains on the Moon, 
						a multitude of previously invisible stars, and four 
						moons orbiting Jupiter. Many of Galileo’s observations 
						were made from his backyard. Four centuries after 
						Galileo’s 1609 observations—thanks to the revolutionary 
						trio of affordable CCD cameras, small go-to telescopes, 
						and personal computers—thousands of backyard Galileo's 
						around the planet are now probing cosmic mysteries every 
						clear night. They conduct scientific research across a 
						broad spectrum: tumbling asteroids, pulsating stars, 
						eclipsing binaries, transiting planets, and sputtering 
						matter as it spirals onto white dwarfs and neutron 
						stars. 
						 
						
						
						To commemorate Galileo and celebrate his legacy, 2009 
						has been designated the International Year of Astronomy 
						(IYA).  This conference honored Galileo and his 
						telescope, by way of the many current builders and 
						researchers—amateurs, students, and professionals—who 
						are successfully designing, building, and using small 
						telescopes, CCD cameras, and even spectrographs to 
						advance astronomical science. The conference 
						celebrated Galileo’s achievements by examining his 
						legacy: the remarkable resurgence of small telescopes 
						and their science. 
							
								| Galileo's Legacy Conference Agenda of 
Talks and Workshops
 
								Thursday, 
January 1st    Telescope Control and Mirror Developments
 8:40-9:00       Russ Genet                   Intermediate Aperture Alt-Az 
Telescope Development Program
 9:00-9:20       Dan Gray                      Direct Drive Axial Flux Motors
 9:20-9:40       Dan Gray                      Brushless DC Telescope 
Controller
 9:40-10:00       Kiran Shah                    Epoxy Spin-Cast Mirrors
 10:30-10:45  
     Andrew Aurigema         Acrylic Plastic Mirrors for Hyper-Fast 3-D 
Telescopes
 10:45-11:00  
     Andrew Aurigema         Vacuum Deposition Coating of Non-Traditional Mirror 
Materials
 11:00-11:20       Andrew Aurigema         Foam Glass Sandwich Mirrors
 11:20-11:40  
     David Davis                  Hogging with Heat: Kiln Forming Saggital Depth 
Curves
 in Thin Plate Glass
 11:40-12:00  
     David Davis                  Composite 
Mirrors, Pushing the Envelope
 4:00-5:30      Workshop                     Alt-Az Telescope Development
 8:00-9:00      Arne Henden                 Keynote Talk: Variable Star Observing 
for Fun and Profit
 Friday, 
January 2nd    Solar Research, Remote Observatories, and Chandra
 8:40-9:00      Sara Martin                   Solar Prominence Research 
Using Small Telescopes
 9:00-9:20      Alexander Wen             An Investigation of Exceptions to the Hemispheric Pattern of  Chirality 
of
 Solar Prominences and Related Features
 9:20-9:40      Tom Smith                     Dark Ridge Observatory Overview
 9:40-10:00      Tom Smith                     Remote Observing for Students
 10:30-10:50 
      Robert Rea                   Regent Lane Observatory
 10:50-11:10      Kevin Ivarsen                Skynet and PROMPT: Overview of a Global 
Telescope Network
 11:10-11:40  
    Donna Young                The Chandra X-ray 
Satellite and AAVSO Education Outreach Initiative
 11:40-12:00  
    Terry Matilsky               DS9 Image Analysis Software
 12:00-12:20  
    Doug Lombardi              Decoding Starlight and Imaging
 3:30-5:30      Workshop                      Chandra
 8:00-9:00      Tom Johnson                 Historical Talk: The Schmidt 
Corrector and the Founding of Celestron
 Saturday, 
January 3rd    Day off, Luau, and Remote Double Star Observing 
    8:05-9:00      Richard Berry              
Luau Talk: Galileo Meets Babbage: The Evolution of Data in 
Astronomical Science  (Pokai Room)
 Sunday, 
January 4th    Research as Education, Instruments, and Science     8:30-8:50      Russ Genet                    Astronomical Research as 
Undergraduate & High School Education8:50-9:10      Jo Johnson                     Fall 2008 Astronomy Research 
Seminar at Cuesta College
 9:10-9:30      Arne Henden                 Recent Variable Stars of Interest
 9:30-9:50      Matt Beaky                   Pulsating 
Stars in Eclipsing Binary Systems
 9:50-10:10      Alan Holmes                  
Capabilities and Limitations of 
Amateur Spectroscopy
 10:40-11:00  
     Danyal Medley              Small Telescope Developments at Celestron
 1:00-11:20  
      Kent Clark                    Introduction to Visual Double Stars
 11:20-11:40 
      Kent Clark                    Measurement of the Proper Motion of ENG 7B - A Student Project
 11:40-12:00  
     Bob Nelson                   Spectroscopy for Eclipsing Binary Light Curve 
Analysis
 12:00-12:30  
     Doug Simons                 Gemini and Tech Transfer
 4:00-5:30      Workshop                     Advanced Technologies 
& Tech 
Transfer from Larger Smaller Telescopes
 8:00-9:00      Alan Holmes                  Keynote Talk: Two Decades of 
SBIG CCD Cameras
 Monday, 
January 5th    Science and Special Talks     8:40-9:00      Arne Henden                 Near IR Photometry9:00-9:20      Dan Gray                      Automation of the 
SSP4
 9:20-9:40      Tom Johnson                 Optical Testing
 9:40-10:00      Terrance Redding          How 
Amateur Astronomers Learn: Engaging High Self-Directed
 Learners in Astronomy
 10:30-11:00  
     Scott Degenhardt          Introduction to Occultations
 11:00-11:20  
     Scott Degenhardt          Multi-Station Occultation Observing with Galileo 
Sized Optical Systems
 11:20-11:40  
     Bob Buchheim              PSF-Matching for 
Measuring Close Double Stars
 11:40-12:00  
     Richard Berry               The new Magnitude Measurement Tool in AIP4Win
 4:00-5:30      Workshop                      Science Research and Education
 8:05-9:00      Bob Buchheim               Aloha Talk: 
The Evidence of Things Not Seen  (Pokai Room)
 |  
						                                                         
						 Click here for more 
						information
 |  Back to Top 2008 Conference 
					
						|  | STAR
 SMALL
						TELESCOPES
 & 
ASTRONOMICAL
						RESEARCH
 Conference on smaller telescopes (2 meters or less)
Their development & use in research & education
 
 June 19-22, 2008
 San 
Luis Obispo, California
 
 Original Website
 |  
						| 
							
								| 
								 Cal Poly 18
 | 
						    
						Affordable CCD cameras, compact go-to telescopes, and 
						powerful personal computers (not to mention DSLR and video cameras) have transformed small 
		telescopes into powerful tools for astronomical research. “Dobsonian” 
		mirrors up to one-meter aperture and affordable control systems are 
		being combined into highly capable equatorial and alt-az telescopes. 
		These larger telescopes not only allow precise astrometric and 
		photometric observations of faint objects but, with recently available 
		spectrographs, both time-series and classification spectroscopy are now 
		affordable. Robotic and remote access small telescopes are facilitating 
		observations both locally and remotely around the globe. High school and 
		undergraduate students are joining the ranks of amateur and professional 
		astronomers in utilizing small telescopes for astronomical research. 
		Whether conducting astronomical research or developing new telescopes or 
		software, students gain invaluable hands-on experience in science and 
		engineering while, as coauthors of published papers, their careers are 
		given a boost. |  
						 
							
								| 
								STAR Conference Agenda of Talks and Workshops
 
								
								Thursday, June 19Evening Presentations (7:30-9:00)
 Arne Henden – You Should Observe Variable Stars!
 
 Friday, June 20
 Opening (8:00-8:20)
 Bob Buchheim – Evidence of Things Not Seen
 
 Telescopes 
								I (8:20-10:00)
 Rick Hedrick – PlaneWave Telescopes
 Dan Grey – The New Sidereal Technology Telescope 
								Control System
 Russ Genet – Modest Aperture Alt-Az Research 
								Telescopes
 George Alers – 
								
								Bringing an Old LX10 into the Digital Age
 
 Telescopes 
								II (10:30-11:50)
 Curtis mead – All Sky Optical SETI: The Greatest 
								Hits
 Erick Kopit – 
								
								Orion Products for 
								Astronomical Research at Affordable Prices
 Tom Osypowski – A Commercial Aluminum Telescope
 Matt Swanson, Michelle Kirkup, and Josh Schmitt 
								– Design and Fabrication of an Optical Tube 
								Assembly
 for an 18 Inch Alt-Az Telescope
 
 Instrumentation (11:50-12:30)
 Richard Crisp I – Trends in CCD Sensor 
								Development
 Richard Crisp II – Polarization Imaging Using 
								Stokes Parameters
 
 Kit 
								Telescope Workshop (2:00-2:30)
 Erick Kopit, Dan Grey, Russ Genet, Rick Hedrick, 
								Michelle Kirkup, John Ridgely
 1.5 
								Meter Telescope Challenge Workshop (2:30-3:00)
 Russ Genet, Curtis Mead, Arne Hendon, Dan Grey, 
								Matt Swanson, John Ridgely
 Telescope Technology Workshop (3:30-4:00)
 Dan Grey, Tom Osypowski, Tom Smith, Erick Kopit, 
								Rick Hedrick, Josh Schmitt
 Instrumentation Workshop (4:00-4:30)
 Curtis Mead, Bob Buchheim, Arne Hendon, Dan 
								Grey, Richard Crisp, Rich Williams
 
 Guest Talk 
								(Evening)
 Wayne 
								Rosing – Las Cumbres Observatory Global 
								Telescope Network
 
 Double Star 
								Astrometry
 Tom 
								Frey – What are Double Stars?
 Kent Clark – The 
								Journal of Double 
								Star Observations
 Stephanie Marble, Christianne Gonzales, Corey 
								Cameron, and Sarah Fishbein –
 High School Student Observations of the Visual 
								Double Star 3 Pegasi
 Exoplanet Transits
 Jim 
								Carlisle, Tom Smith, and Jolyon Johnson – 
								Transiting Exoplanet WASP-1b
 
 Telescope 
								Engineering
 John Ridgely – Cal Poly Mechanical Engineering 
								Senior Projects Class
 Matt Swanson, Michelle Kirkup, and Josh Schmitt 
								– 18 Inch Telescope Optical Tube Assembly
 Raymond Desmarais – Large Lightweight 
								Inexpensive Telescopes
 Brittany McCrigler and George Alers – Upgrading 
								an LX10
 
 Local 
								Astronomy Programs
 Dave Mitchell – Cal Poly Astronomy Program
 Russ Genet – Cuesta College Astronomy Program
 Vera Wallen – Cuesta College Physics Research 
								Seminar
 Walt Reil – Central Coast Astronomical Society
 
								
								Saturday, June 21Opening (8:00-8:20)
 Wayne Rosing – Las Cumbres Observatory Global 
								Telescope Network
 
 Double Star 
								Astrometry (8:20-9:20)
 Kent Clark – 
								All About the
								Journal 
								of Double Star Observations
 Dave Arnold – Considering Proper Motion in the 
								Analysis of Visual Double Stars
 Tom Frey – Visual Double Star Measurements with 
								an Alt-Az Telescope
 
 Exoplanet 
								Microlensing and Transits (9:20-10:00)
 Andrew Gould – MicroFUN: Amateur + Professional 
								Collaboration to Find Planets Using 
								Gravitational Microlensing
 Jolyon Johnson – Observations of Exoplanet 
								WASP-1b Suggest Early Transit
 
 Solar 
								Phenomena and Time Series Photometry 
								(10:30-12:30)
 Sara Martin – An Abundance of Research 
								Opportunities Using Small Solar Telescopes
 Mark Wagner – Filters for Solar Research”
 Brittany McCrigler I – Discovery of a New 
								Variable Star
 Brittany McCrigler II – Period Analysis of the 
								Asteroid 2 Pallas
 Sunday, 
								June 22Opening (8:00-8:20)
 Arne Hendon – An Introduction to Infrared 
								Photometry
 
 Remote and 
								Robotic Observatories (8:20-10:00)
 Tom Smith – Collaboration and Remote Student 
								Research at the Dark Ridge Observatory
 Rich Williams – Commercial Remote Observatories: 
								Flexible, Expedient, and Cost Effective 
								Facilities for
 Astronomy Research and Education Projects
 Gary Cole – Small Telescope Automated 
								Spectroscopy
 Russ Rob – Astronomical Research at Victoria 
								University
 
 Research as 
								Education (10:30-12:30)
 Russ Genet – Astronomical Research as Science 
								Education
 Vera Wallen – Student Astronomical Research: An 
								Educator’s Perspective
 Jolyon Johnson – Double Star Observations by the 
								Cuesta College Research Seminar
 Jim Carlisle – The Road to Exoplanet Study
 
 Double Star 
								Astrometry Workshop (2:00-2:30)
 Kent Clark, Dave Arnold, Tom Frey, Jolyon 
								Johnson, Bob Buchheim,  Russ Genet
 
 Exoplanet 
								Transits and Microlensing Workshop (2:30-3:00)
 Andrew Gould, Jim Carlisle, Arne Hendon, Tom 
								Smith, Jolyon Johnson, Bob Buchheim
 Remote/Robotic Observatories Workshop 
								(3:30-4:00)
 Tom Smith, Rich Williams, Russ Genet, Arne 
								Hendon, Curtis Mead, Gary Cole
 Research as Education Workshop (4:00-4:30)
 Vera Wallen, Arne Hendon, Russ Genet, Jolyon 
								Johnson, Tom Smith, Bob Buchheim
 
 Evening 
								Presentations (7:30-9:00)
 Richard 
								Berry – Astronomy in Africa and Visiting the 
								South Africa Large Telescope (SALT)
 |  Click here for more 
						information
 |  Back to Top WORKSHOPS
 
				2010 Workshop
 
					
						| 
 | 
						
						Portland IV Alt-Az
 Initiative Workshop
 at 
		Sidereal Technology
 Held
		July 31 – August 1, 2010   Portland, Oregon
 |  
						| The Portland IV 
				Annual Alt-Az Initiative Workshop was held on Saturday and 
				Sunday at Dan Gray's Sidereal Technology plant, preceded by an 
				informal BBQ on Friday evening, July 30.  Last year’s Portland 
				III Workshop featured a wide variety of speakers, and was 
				featured in Amateur Astronomy magazine as will be this 
				year’s workshop.  Topics this year included lightweight 
				mirrors, large alt-az telescopes, advanced control systems, 
				instruments (including near IR aperture photometers), and other 
				topics.  Howard Banich  chaired the workshop (howard.banich@nike.com), and Dan Gray 
						was 
				the local host. 
				
				                                                                     
				Agenda 
				
				
				Friday, 7/30 (6pm)
 Welcome BBQ at TMS
 
				
				Saturday 7/31 (8:30am) 
				
				Introduction and agenda review – 
				
				Howard
 “What’s the telescope for?” – 
				
				Richard, 
				
				Russ
 Research opportunities – 
				
				Richard, Jo, David, Russ,
				
				
				Gary Cole. Bob Nelson, David Haworth, Bruce:
 Occultations (Lunar and asteroid)
 
				
				Light Bucket astronomy – 
				
				Bruce: 
				
				Light Bucket Mirrors,
				
				
				some 
				light bucket mirror theory (figures of merit overview),
				
				
				Pneumatic LBTs, Evaluation of other new types and coatings
 (Starstone, solar, Peacock Labs).
				
				
				Russ
 Visual observing - 
				
				Howard
 
				
				Brief history of the alt-az telescope – 
				
				Richard, Peter Abrahams Herschel and Lord Rosse – 
				
				Richard
 
				
				Mirror technologies – 
				
				Mel, David, Drew, Peter Chen, Bruce, Umesh and Brian 
				
				Active primary and secondary optics 
				
				– 
				
				Umesh:
 Closed loop control of membrane mirrors using electrostatic 
				actuators, Brian:
 Laboratory experiments on electrostatically controlled membrane 
				mirrors, Bruce:
 Correctors –Lenses, Deformable Secondary. 
				
				Greg
 Spherical aberration correction via spherical refractive 
				elements - 
				
				Dave
 
				
				Sunday, 8/1 (9:00am)Direct drive motor and controller – 
				
				Dan, Dave and the PlaneWave gang
 Instrumentation – 
				
				Greg, Dan, 
				Bruce: 
				
				Fast Detectors, Area (CCD & CMOS) and diaphragm (high speed
 electrometer design)
 
				
				Update on Russ Genet’s 1 meter scope – 
				
				Russ Professional alt-az updates – 
				
				PlaneWave, Craig
 
				
				CDK700 - Dave1 meter CDK Cassegrain – 
				
				Dave
 Future plans - what scopes and instruments are being planned by 
				participants?
 Large 
				Telescope Portability - 
				
				HowardSPIE update – 
				
				Russ
 Wrap up, going forward – 
				
				Howard, Russ
 
 |  2009 Workshops 
					
						|  Tom Frey's team used his 18” Obsession to 
						observe double stars
 | Pine Mountain 
						Observatory Summer Research 
						Workshop 2009
 
 July 17-19, 2009
 Pine Mountain Oregon
 
 Local Host: Mark Dunaway
 
 |  
						| 
						   
						 
						 Three schools, 
						St. Mary's School in Medford, South Eugene High School 
						in Eugene, and Willamette University in Salem 
						participated in the Pine Mountain Observatory Summer 
						Research Workshop 2009. The workshop was only three days 
						long. To accomplish the goals of the workshop, Richard 
						Berry, Jo Johnson, and Thomas Frey were invited as 
						instructors to the students and high school teachers. 
						Richard Berry led a variable star photometry project as 
						well as a proper motion astrometry project. Jo and Tom 
						led visual double star astrometry projects. Each of the 
						instructors also gave lectures on the first day to 
						introduce the students to the topics of their research. 
						None of the students had made quantitative astronomical 
						measurements before. Each team wrote up a paper 
						describing the research they had done. Three papers in 
						all were submitted for publication.Dan Gray continued his project for automated IR 
						photometry of variable stars and Russ Genet made considerable 
						progress on the design of a 1 meter alt-az telescope for 
						the Orion Observatory, which he directs. Finally, the 
						editors of the Small Telescopes and Astronomical 
						Research book, Russ Genet, Jo Johnson, and Vera 
						Wallen met at the workshop to finish preliminary editing 
						of all chapters and Cheryl Genet, managing editor of the 
						Collins Foundation Press, typeset the chapters in 
						InDesign.
 |  
						|  Richard Berry's 
						team made photometric and astrometric measurements
 |  Jo Johnson's team observed double stars 
						on Russ Genet's NexStar 6
 |  Dan Gray makes automated IR measurements
 |    
					
						| 
						 Gemini workshop tour group (bottom right) and the Gemini 
						telescope
 | Gemini Observatory Tour Workshop
 January 7, 2009
 Hilo, Hawaii
 
 
							
								| 
								
								After the January conference, Galileo's 
								Legacy: Small Telescopes and Astronomical 
								Research, over a dozen astronomers and 
								engineers visited the Gemini telescope on Mauna 
								Kea for an "insiders tour."  They stopped 
								at the Hale Pohaku Astronomer's Hotel (9000 ft 
								level) to have lunch and acclimatize to the 
								altitude before ascending to the top of mountain 
								at 14,000 feet. During this workshop they 
								continued their discussions of alt-az telescope 
								technologies and saw the Gemini implementation 
								of some of these technologies first hand. |  |  Back to Top 2008 Workshop 
					
						|  | Vancouver 1-2 Meter Telescope Workshop
 July 25-26, 2008
 University of British Columbia
 Vancouver, BC, Canada
 
 Organizers: Craig Breckenridge & 
						Russ Genet
 
 |  
						| 
							
							
							  
							
							Craig Breckenridge, 
							members of the Vancouver ATM community, local 
							professionals from the large aperture telescope 
							design field, and the low cost 1.5 meter alt-az 
							telescope development team met to discuss all 
							aspects of 1M to 2M class instruments and their 
							enclosures and to reviewing preliminary design 
							alternatives for the low cost 1.5 meter telescope.
 The 
							Schedule for the Vancouver Telescope Workshop was 
							as follows:
 
 
							
							Friday, 
							July 25th – Arrival Dinner / Possible 
							Observing
							
							2:00 – 6:00 Arrivals self 
							check in at Gage Towers, informal discussions at 
							Gage
							
							6:00 – 9:00 Social hour, 
							informal Dutch treat dinner (guest speaker and slide 
							show after dinner) 
							
							9:00 - ??? Possible 
							Observing at either UBC's .42M telescope or the 
							Gordon McMillan Southam Observatory's .5M telescope 
							(Craig Breckenridge design)
 
							
							
							Saturday, July 26th – 1-2 Meter Telescope 
							Workshop 
							
							Overview and discussion of 
							current technologies and future potentials for 
							telescopes in the 1-2 meter range.  Emphasis on the 
							potential for applying some of the lessons learned 
							in larger alt-az telescopes to modest aperture 
							alt-az systems in a manner that could result in 
							unusually lightweight, low cost telescopes.
 
							
							8:00 - 9:00 Plenary 
							Session 
							
							9:00 - 10:00 Optics 
							Workshop 
							
							10:15 - 11:15 Structural 
							Workshop 
							
							11:15 - 12:15 Mechanical 
							Workshop 
							
							1:15 - 2:15 Controls 
							Workshop 
							
							2:15 - 3:15 Operational 
							Workshop (autoguiding and active primaries) 
							
							3:30 - 4:30 Observatory 
							Workshop 
							
							9:00 PM 
							Observing with the Royal Astronomical Society of 
							Canada, Vancouver Centre at their inaugural local 
							Star Party (in Fort Langley - about 1 1/2 hour 
							drive).
 
							
							Sunday, 
							July 27th – 1.5 Meter Telescope 
							Preliminary Design Review
							
							The 1.5 meter project is 
							developing a lightweight, low cost telescope for 
							dedicated near-IR photometry and fiber fed optical 
							spectroscopy.  Several preliminary design 
							alternatives were presented for critique by the 
							attendees with the hope of selecting one option for 
							further detailed design and construction.
 
							
							8:00 - 9:00 Overview 
							briefings on the 1.5 meter telescope project and 
							applications 
							
							9:00 - 10:00 Panel 
							discussion on the 1.5 meter project, NIR, and 
							spectroscopy 
							
							10:15 - 11:15 Briefings on 
							1.5 meter design alternatives 
							
							11:15 - 12:15 Panel 
							critique and recommendation for design alternative 
 Atendees
 
							
							
							Dan Gray, Russ Genet, Craig Breckenridge, Howard 
							Trottier, Merle Halpern, Nathan Loewen, Eric Fuller,
							Bob Nelson, Mikhail RosenbergJuan C. Diaz, Marcel, Kreig McBride, Greg Burley,
 |  Back to Top 
					
						| 
						 Dan Gray with a direct drive motor
 | Portland Workshop II
 July 24, 2008
 
 Sidereal Technology
 Portland, Oregon
 
 Local Host: Dan Gray
 
 |  Howard Banich Presents to Participants
 |  
						| 
							
							
								
								
								       
								Sidereal Technology hosted, for the second time, 
								a Portland workshop devoted to the design, 
								construction, and use of high tech, modest 
								aperture, low cost, alt-az telescopes.  The 
								telescopes and designs we discussed were all 
								high tech in the sense that they were 
								computer-controlled precision goto/tracking 
								telescopes that used aerospace materials as 
								appropriate.  We limited ourselves to 2 meters 
								or less in aperture, except for several larger 
								alt-az telescopes we have visited for 
								inspiration such as the 2.4-meter Magdalena 
								Ridge Observatory and 8-meter Gemini and Subaru 
								telescopes.   
								
								 One can purchase wonderfully designed and 
								manufactured alt-az telescopes in the 1 to 2 
								meter range from firms such as ESO Technologies, 
								DFM Engineering, and others. These systems 
								are excellent values.  Our group’s interest 
								centers on addressing how telescopes of much 
								lower cost—an order of magnitude lower—might be 
								designed and produced.  Of course there are 
								no free lunches, so such low costs would have to 
								depend on technological breakthroughs, limited 
								telescope capabilities (such as specialized, 
								dedicated mission telescopes), be standardized 
								and manufactured in quantity, or have 
								somewhat lower optical quality, etc. 
								
								  
								
								
								Attendees  
								Peter Abrahams, Tim Anderson, Howard Banich, Mel 
								Bartels, Richard Berry, Mike Colyar, Nathan 
								Corrier, Russ Genet, Dan Gray, David Haworth, Greg Jones, 
								Don Peckham, Greg Rohde, and Malcom Saunders
 
								
								  
								
								Agenda 
 
								
								
								Dan Gray: 
								
								High Resolution Encoder, Hand Controller, Direct 
								Dive Motor Controller, Optec SSP-4 Automation, 
								Cal Poly 18 Inch Telescope, Instrument Rotator 
								Projects, Alt-Az 16 Inch Telescope.
 
								
								
								Tim Anderson: 
								
								Memory Foam Mirror Cell for Thin Mirror.
 
								
								
								Dave Rowe: 
								
								Direct Drive Motors, High Resolution Encoder, 
								CDK Design / 2 Meter Telescope, Spherical 
								Correctors, Corrected Hyperbolic Newtonian, 
								Optec SSP-4 Results, IR Detectors Possibilities, 
								Darwin Optical Analysis Program, 
								
								Multiple OTA Telescope / Four Shooter. 
								
								  
								
								
								Howard Banich: 
								
								Conversion of 28 Inch Telescope, Primary Mirror 
								Cell for 18 Inch Telescope, Secondary Mirror,  
								Structure for 18 Inch Telescope.
 
								
								
								Peter Abrahams: 
								
								Early Computer Controlled and Robotic 
								Telescopes.
 
								
								
								Russ Genet: 
								
								Lightweight Mirrors, Goto Dobs.
 
								
								
								Mike Colyar: 
								
								High Speed Photometry, Oil Pad Systems, Preload 
								Springs From Recoil Starters.
 
								
								
								Richard Berry: 
								
								Science Programs for Advanced Telescopes, 
								Alternative Instrument Payload Configurations. 
								
								  
								
								
								Greg Rohde: 
								
								Fused Quartz Mirror Cells. 
								
								  
								
								
								Malcom Sanders: 
								
								Problems with 700mm Telescope. |  Back to Top 2008 Workshop Back to Top
 2008 Workshop
 
					
						| 
						 Chris, Daigo, Mike, & Russ
 | Gemini/Subaru 
						Workshop II February 23-25, 2008
 Hilo, Hawaii
 
						
						A second workshop was held in Hilo, February 2008, with 
						Chris Carter (Gemini Controls), Daigo Tomono (Subaru 
						Mechanical), Mike Sheehan (Gemini Mechanical), and Russ 
						Genet (Alt-Az Initiative). The first part of the 
						workshop was devoted to roughing out a conceptual design 
						for a lightweight (under 1000 lb.), low cost 2.0 meter 
						telescope for dedicated, fairly narrow field-of-view 
						applications such as time series photometry or fiber-fed 
						spectroscopy. The conceptual telescope employed four 
						1-meter spherical mirrors that would be co-aligned and 
						co-focused, albeit not co-phased.  Instruments were 
						placed on the top of struts at prime focus behind a 
						refractive spherical aberration corrector.  The 
						second part of the workshop was devoted to discussing 
						active correction of a primary mirror figure via "voice 
						coil" tweaking as the telescope changed its azimuth. The 
						amount of "tweaks" needed to overcome 
						mirror "slumping" would be determined off line 
						by observing bright stars at a range of altitudes. These 
						values would be stored in a lookup table 
						& interpolated to the telescope's current altitude, an 
						approached used successfully by the Subaru 8 m 
						telescope. |  
						| 
						 Chris and Russ with voice coil
 |  Back to Top 2008 Workshop 
					
						| 
						 Gemini Observatory - Mauna Kea
 | 
 Gemini and Subaru 
						Observatory Tours
 and Workshop I
 January, 2008
 Hilo, Hawaii
 |  
						| 
						 Workshop at Gemini Headquarters
 | 
							
							
							The large telescopes 
							have pioneered many of the techniques that can now 
							be applied at greatly reduced cost thanks to 
							advancements in electronics and materials.  The 
							large telescope engineers seem to genuinely enjoy 
							discussing the challenges of applying what they 
							have learned on a much smaller scale and greatly 
							reduced budget. 
							  
							
							Alt-Az Initiative 
							members Russ Genet and Dan Gray met with Gemini 
							engineers Chris Carter and Mike Sheehan and Subaru 
							engineers Daigo Tomono and Hicleki Takami in Hilo on 
							the big island of Hawaii.  Gemini Director Doug 
							Simons joined us during our meeting.  A visit to the 
							8-meter Gemini and Subaru telescopes on Mauna Kea 
							followed the meeting.  Chris Carter guided Russ and 
							Dan Gray through Gemini, while Diago Tomono guided 
							them through Subaru. 
							  
							
							Both the Gemini and 
							Subaru telescopes use thin meniscus primary 
							mirrors.  The mirror blanks were cast at Corning 
							from ULE.  Passive supports alone would be 
							inadequate for these mirrors, so their figures are 
							fine tuned with actuators which actively apply 
							forces to the backs of the mirrors.  The Subaru has 
							a diameter to thickness ratio of 60:1.  What was of 
							great interest to us was that once the necessary 
							forces for various elevations and temperatures were 
							determined, they could be used for months in a table 
							look-up fashion before they needed to be refined.  
							This was important for our smaller alt-az telescope 
							to know, because we have been considering using a 
							thin meniscus mirror in our 1.0 to 2.0 meter 
							telescopes with active control and were hoping that 
							we could make calibration measurements off line and 
							just interpolate from a table during normal 
							operation. 
						
						Click here for pdf of article published in Astronomy 
						Today |  
						| 
						 Consultation in Subaru Control Room
 |  
						| 
						 Gemini Telescope
 |  Subaru Instruments
 |  Back to Top 2007 Workshop 
					
						|  | Texas Astronomical 
Society of 
Dallas
 
 High-Tech Alt-Az Telescope Workshop
 October 26-27, 2007
 Dallas, Texas
 
 Program Organizer: Russ Genet
 Local Host: Max Corneau
 
 http://texasastro.org
 |  
						| 
							
							
							Evening Kickoff  
							at the Texas Astronomical Society of Dallas’s 
							General Meeting at the University of Texas, Dallas, 
							Friday evening, October 26, 7:00-8:30 PM.  A 
							40-minute presentation, High-Tech Alt-Az 
							Telescopes for Research, Astrophotography, and 
							Education, by Russ Genet (California Polytechnic 
							State University) will be followed by a 
							question-answering panel chaired by Max Corneau with 
							panel members Russ Genet, Richard Kay, Tom Krajci, 
							Tom Smith, and Dave Rowe.
 
							  
							
							All-Day Workshop  Saturday, 
							October 27, 2008, 9:00 AM – 5:00 PM.  Please see 
							workshop agenda below. 
	
 
 Introduction to 
	Alt-Az Telescopes for Research, Astrophotography, and Education
 
	The combination of 
	low-cost alt-az telescope control systems and affordable aerospace materials 
	has reached the point where a revolutionary new class of lightweight, highly 
	capable alt-az telescopes is emerging.  Similar to SCTs, this new class of 
	alt-az telescopes will not only be used visually, but also for CCD-based 
	scientific research and astrophotography.  Similar to Dobs, they will have 
	larger apertures than SCTs, yet will be lightweight.  Unlike the visual Dobs 
	but similar to giant mountaintop alt-az telescopes, this emerging class of 
	precisely controlled telescopes will handle a variety of instruments mounted 
	on field de-rotators with generous back focus.  The primary reason for 
	developing lightweight alt-az telescopes with apertures larger than SCTs is 
	to conduct research on and image (as well as view) fainter objects with 
	affordable telescopes.   
	       The cost of alt-az 
	telescope control systems has plummeted over the years.  Initially, control 
	computers and telescope control electronics cost tens of thousands of 
	dollars and filled entire equipment racks.  Today, Sidereal Technology makes 
	a microcomputer-based alt-az telescope control system for about $1,000 that 
	you can place in your briefcase with room to spare.  Meanwhile, the cost of 
	aerospace materials has plummeted as their use has moved beyond aircraft and 
	spacecraft to outdoor signs and building exteriors.  Given these two 
	dramatic drops in cost, research-grade alt-az telescopes fabricated from 
	lightweight aerospace materials are now economically viable.
 
	The objective of the 
	Dallas Alt-Az Workshop is to explore, in workshop talks and panel 
	discussions, eight areas:
 
	(1)    
	
	lightweight affordable optics 
	
	(2)    
	
	autoguiding 
	
	(3)    
	
	precision 
	control systems and drives 
	
	(4)    
	
	field 
	de-rotation 
	
	(5)    
	
	high 
	natural frequency mechanical structures 
	
	(6)    
	
	bearings 
	for alt-az telescopes 
	
	(7)    
	
	structural 
	alternatives 
	
	(8)    
	
	observatories (automation, scheduling, and remote sites) 
							
							
							
							Workshop Agenda
 
							  
							
							830-840   Welcome/Introduction to the Texas 
							Astronomical Society of Dallas 
							
							Max Corneau, Texas Astronomical Society, Dallas 
							(Vice President) 
							  
							
							840-850  Workshop Overview   Russ Genet, Cal 
							Poly Univ.  
							
							
							  
							
							850-900 
							Morning Session Introduction   Tom Krajci,
							Astrokolkhoz 
							Observatory 
							
							  
							
							900-945  Lightweight Affordable Optics   Dave 
							Rowe, Sierra Monolithics 
							
							A wide-field photo-visual alt-az telescope supports 
							two basic optical configurations: the corrected 
							Newtonian for smaller systems, and the 
							tertiary-focus Cassegrain for larger systems.  The 
							first part of this talk will address the 
							requirements and trade-offs for telescopes of this 
							class, and will discuss various high-performance 
							optical designs in detail.  Emphasis will be placed 
							on corrected parabolic Newtonian, corrected 
							hyperbolic Newtonian, and corrected Dall Kirkham 
							optical systems.  The second part of this talk will 
							cover the current status and future of large, 
							lightweight mirror blanks and corrective optics.  
							Lightweight and inexpensive primary mirrors and 
							matched correctors are needed to fulfill the promise 
							of the high-tech telescope. 
							
							  
							
							945-1015  Corrected Dall Kirkham Alt-Az 
							Telescopes   Rick Hedrick, Plane Wave 
							Instruments 
							
							The corrected Dall Kirkham design employed in the 
							20-inch Plane Wave Instruments OTA is being extended 
							to alt-az telescopes of 40-inch (1-meter) 
							telescopes.  Why is this optical design particularly 
							well suited to economical 1-meter telescopes for 
							research, astrophotography, and education? 
							
							  
							
							1015-1030 Autoguiding   
							
							Tom Krajci, Astrokolokhoz Observatory
							 
							
							Autoguiding has been the mainstay of long-exposure 
							astronomical imaging.  This talk will cover the 
							current status and future of telescope positioning 
							and position correction.  Topics will include 
							traditional autoguiding using cameras and mount 
							corrections, faster correction methods using movable 
							mirrors and deviator plates, and long-exposure 
							unguided imaging using precision encoders and mount 
							modeling.  The impact on the optical and mechanical 
							design will be discussed. 
							  
							  
							
							1100-1200  Precision control systems and drives 
							  Dan Gray, Sidereal Technology 
							
							Sidereal Technology manufactures and supports a 
							control system that can be used for either 
							equatorial or alt-az telescopes.  Over 100 systems 
							have been incorporated into telescopes, including 
							several ATM alt-az systems.  An active Yahoo user’s 
							group helps newcomers and provides ideas for and 
							evaluations of advances.  Besides reviewing the 
							current control system, this talk will describe new 
							developments which include “tick management,” 
							closed-loop operation with high-resolution telescope 
							encoders, and experiments with the control of 
							high-torque brushless DC motors.  This latter 
							development could produce active control systems 
							that directly counter wind gusts one millisecond at 
							a time. 
							  
							
							1200-1230  Field de-rotation  Dan Gray, 
							Sidereal Technology 
							
							Although new high-speed CCD cameras, such as 
							MalinCan and StellaCam, can overcome field rotation 
							by stacking short exposures, accumulated camera read 
							noise can be a problem for faint-object photometry 
							or narrow-band astrophotography.  Thus instrument 
							rotators are still useful for research alt-az 
							telescopes.  Several off-the-shelf instrument 
							rotators (Meade, Optec, RC Optical Systems) are 
							available.  A proposed development by Sidereal 
							Technology will also be discussed. 
							  
							  
							
							200-210 Afternoon session introduction   Tom 
							Smith, Dark Ridge Observatory 
							  
							
							200-230   High natural frequency mechanical 
							structures   Russ Genet, Cal Poly Univ. 
							
							Control systems that actively counter wind gusts 
							with high-torque motors and high-resolution encoders 
							require, to be effective, very stiff telescope 
							structures with resonant frequencies above 10 Hertz 
							(most of the wind gust energy is from 1 to 10 
							Hertz).  Sheet steel is very stiff for its weight 
							(and very economical), but aerospace materials, such 
							as carbon fiber and other composites, and aluminum 
							honeycomb and foam core panels are, pound-for-pound, 
							even stiffer and lighter than sheet steel.  Ordinary 
							woodworking tools and structural adhesives can be 
							used to build lightweight alt-az telescopes in a 
							manner very similar to building balsa wood model 
							airplanes. 
							  
							
							230-300  Bearings for alt-az telescopes  
							Richard Kay, Impact Bearings, Inc. 
							
							While there are many ways to accommodate rotation in 
							altitude and azimuth, precision bearings is an 
							approach that has been used with success by the 
							smaller mountaintop alt-az telescopes, such as the 
							new 2.4-meter telescope at Magdalena Ridge 
							Observatory built by EOS Technologies.  Although 
							large-diameter slim-line bearings are somewhat 
							expensive, they are a viable option for lightweight 
							alt-az telescopes.  Recent advances in bearing 
							technology will be discussed. 
							  
							
							300-330  Structural alternatives panel discussion  
							Panel Moderator: Max Corneau 
							
							Panel Members: Richard Kay, Dave Rowe, Russ Genet, 
							Tom Smith, and Tom Krajci 
							
							There are many structural possibilities for 
							lightweight alt-az telescopes.  The panel will 
							address a number of questions.  Newtonian top ends: 
							can they achieve low wind resistance?  Should truss 
							or closed OTAs (shroud or otherwise) be used?  What 
							is the best approach to fork designs?  Is foam 
							filled monocoque or stacked aluminum skinned panels 
							a viable approach?  How can altitude and azimuth 
							drives be integrated into the structure?  Should 
							they be non structural?  How should telescopes be 
							coupled to piers or ground pads?  Is the ground too 
							springy for active control telescopes? 
							  
							
							Mid-afternoon break 
							  
							
							400-430    
							
							
							Observatories: automation, scheduling, and remote 
							sites
							 
							
							Tom Smith, Dark Ridge Observatory, and Tom Krajci, 
							Astrokolokhoz Observatory 
							
							Now that you've decided to build a high-tech alt-az 
							Telescope, how do you automate the observatory so 
							you can sleep through the night?  How do you 
							schedule observations to make the most of dark 
							time?  If you want to operate at a remote site, how 
							do you choose it? 
							  
							
							430-500  Final panel discussion and summary 
							statements  Panel Moderator: Max Corneau 
							
							Panel Members: Richard Kay, Dave Rowe, Russ Genet, 
							Tom Smith, and Tom Krajci 
							  
							
							500 Adjourn   |  Back to Top 2007 Workshop 
					
						|  | RATT II
 REMOTE
		ACCESS 
		AUTOMATIC
		TELESCOPES
 Cloudcroft, New 
						Mexico
 
		Saturday, August 4, 2007 
		 The Cloudcroft area, besides being 
		home to several major research obser-vatories, is a hotbed of smaller 
		observatories, many of which are operated via the Internet from remote 
		locations.
 
 Left: The RAAT conferees pose in front of the historic Cloudcroft Lodge.
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						| 
		       Just over 18 years ago, the first Remote 
		Access Automatic Telescopes (RAAT) conference was held in Tucson (March 
		16-19, 1989). Russ Genet (Fairborn Observatory) organized the conference 
		which was chaired by Dave Crawford (Kitt Peak National Observatory). The 
		conference was sponsored by the Fairborn Observatory, the Smithsonian 
		Institution, and the IAPPP. Not long before the conference, an automatic 
		telescope had received instructions over the Internet, run automatically 
		all night, and sent the results to the requestor following morning—an 
		unattended, remote-access procedure that soon became routine.Russ Genet and David Rowe, the RAAT II 
		conference organizers, thought it would be worthwhile to revisit this 
		topic. The Lodge at Cloudcroft was chosen as the venue not only for its 
		cool summer clime, beauty, and historic charm, but because the 
		Sacramento Mountains of New Mexico have become a world center for remote 
		access automatic telescopes of modest aperture. The conference began at 9 AM, 
		broke for a leisurely lunch, continued during the 
		afternoon, and then adjourned for a Dutch-treat social hour and dinner. 
		Talks and discussions were informal. 
		All subjects dealing with remote access 
		telescopes, imaging, science and/or educational programs were encouraged, 
		as were talks on non-automated observatories and all other astronomical 
		topics of general interest.
 |  Back to Top 2007 Workshop 
					
						|  | Magdalena Ridge 
						Observatory
 Workshop
 August 4, 2007
 Near Seccoro, New Mexico
 
 Local Host: Elwood Downey, MRO 
						Chief Engineer
 
 |  
						| 
							A crucial "workshop" was a visit 
							by Russ Genet, Tom Karjeci, and Tom Smith to 
							Magdalena Ridge Observatory to see and discuss MRO's 
							2.4 meter alt-az telescope which, at the time, was 
							nearing operational status.  The 2.4 meter telescope 
							had been highly recommended to Initiative members as 
							a particularly good example of a modern, modest 
							aperture alt-az telescope.  MRO's chief engineer, 
							Elwood Downey, and EOS Technologies Project 
							Engineer, Kevin Harris, were the hosts.  Initiative 
							members were particularly impressed with the 
							telescope's direct drives and stiff structure, 
							inspiring us to look into direct drives more closely 
							and, eventually, to develop our low cost direct 
							drives. |  Back to Top 2007 Workshop 
					
						|  | STAR
 Small Telescope and Astronomical Research
 Workshop
 
 June 22-24, 2007
 California State Polytechnic University
 San Luis Obispo, California
 
 |  
						| 
						The STAR 
						Workshop was sponsored by the Research Scholar in 
						Residence Program at California Polytechnic State 
						University (Cal Poly).  Late June was chosen as a 
						time when schools were out but summer vacations had not 
						started in earnest.  The workshop provided a forum 
						where high school and undergraduate students, amateur 
						and professional astronomers, educators, and the 
						commercial designers and manufacturers of small 
						telescopes, could share their ideas in the rapidly 
						expanding arenas of small telescope engineering 
						development, scientific research, and undergraduate 
						education. 
 Click here for 
						and article published in Astronomy Technology Today
 |  Back to Top 2007 Workshop 
					
						|  Russ, Howard, Richard, Mel, Dan & 14"
 | Portland I
 June 10, 2007
 
 Sidereal Technology
 Portland, Oregon
 
 Local Host: Dan Gray
 |  Portable 28", Howard & Russ
 |  
						| 
						
						The very first meeting of the Alt-Az Initiative took 
						place June 9-10, 2007, at Dan Gray's Sidereal 
						Technology/Technical Marine Services plant in Portland, 
						Oregon. In attendance, as shown in the photo, were Russ 
						Genet, Howard Banich, Richard Berry, Mel Bartels, and 
						Dan Gray. This small group began considering the 
						research missions for alt-az telescopes in the 0.5 to 
						2.0 meter range, how these missions translated into 
						engineering requirements and, especially, how new 
						technical innovations and "tech transfers" from larger 
						alt-az telescopes might be applied in novel ways to 
						producing research telescopes that were remarkably 
						lightweight and low in cost.  All the attendees had 
						designed and built small telescopes themselves.  Two 
						alt-az telescopes were at the workshop--Dan's 14-inch 
						"Lollipop" and Howard's portable 28 inch which he 
						brought to the workshop in his VW Microbus and assembled 
						himself in just minutes.  It is not surprising that, 
						from the very start, the mind set of Alt-Az Initiative's 
						members was not only on very low cost, lightweight 
						telescopes, but also on an informally funded, voluntary, 
						and cooperative do-it-ourselves approach to 
						development.  Dan's shop in Portland was not only host 
						to another workshop, Portland II, but also to the final 
						work, assembly, and testing of the Initiative's first 
						demonstration telescope, the Cal Poly 18.
 For Alt-Az 
						Aerospace Telescope Article (Amateur Astronomy-Winter 
						2007 - pdf 1.4 MB)   
						
						click here
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