The observatory telescope is a 0.51-meter (20-inch) F/6.8 PlaneWave CDK20 telescope. More information about the Gemini telescope is described here.
The primary imaging instrument is an Apogee CG42 camera with an e2v back-illuminated sensor. The e2v CCD chip has an array of 2048 x 2048 13-micron pixels giving an image scale of 0.78 arc seconds/pixel un-binned. The field of view of 27 x 27 arc minutes. The back-illuminated CCD chip has a very high quantum efficiency (94% peak).
The camera is attached to a 12-position filter wheel that holds Astrodon LRGB Tru-balance E-series, H-alpha [5 nm], OIII [5 nm], SII, Sloan g, Long-Pass (650 nm - 1 micron bandpass specially-made filter for studying very cool stars, but is useful for high SNR on any red object, including asteroids, with bright moon conditions) filters. The filter wheel also contains a 300 line/mm and a 600 line/mm GRISM transmission grating spectrograph (TGS) filter.
The Gemini telescope is housed in the Winer Observatory in Sonoita, Arizona.
The telescope is located at the Winer Observatory in Sonoita, Arizona and is operated robotically using a high-speed Internet connection. It was installed in May 2015 with funding from the Carver Trust. Gemini replaces the venerable Rigel telescope, a 37 cm diameter robotic telescope operated from May 2002 - May 2015.
Longitude: 110° 36' 06.42" West
Altitude: 1515.7 meters (4973 feet)
MPC Observatory Code: 857
Sierra Stars Observatory Network