American Astronomical Society
Association of
Lunar & Planetary Observers
http://www.lpl.arizona.edu/alpo/
The American
Association of Variable Star Observers (AAVSO)
http://www.aavso.org/
Center for
Backyard Astrophysics
http://cba.phys.columbia.edu/
International
Occultation Timing Association (IOTA)
http://www.lunar-occultations.com
RTMC Astronomy
Expo
http://www.rtmcastronomyexpo.org
Apogee, Inc.
http://www.ccd.com/
Cyanogen
Productions Inc.
http://www.cyanogen.com/
DC-3 Dreams, SP
(Note: Site will not return to SAS webpage after access)
http://dc3.com/
Minor Planet
Observer
http://www.minorplanetobserver.com/
Optec, Inc.
http://www.optecinc.com/
PlaneWave Instruments
http://www.planewaveinstruments.com/index.php/
Santa Barbara
Instrument Group
http://www.sbig.com/
Software Bisque
http://www.bisque.com/
Meade Instruments
Corporation
http://www.meade.com/index1.html
Quantum Scientific Imaging
http://www.qsimaging.com/
Sky and Telescope
http://skyandtelescope.com
Photometry Sites
William
Romanishin’s book on photometry
http://observatory.ou.edu/book2513..html
CALL Project -
Information on Asteroid Photometry and Light Curves
http://www.MinorPlanetObserver.com/astlc/default.htm