USNO Robotic Astrometric Telescope

URAT: the Astrograph (early phases)




Astrograph







The URAT telescope in April 2008. The lens, camera and shutter in that version were very cheap; however the imaging capability was rather limited.





The URAT telescope at USNO in Washington DC, April 2010. Cables are led through the polar axis of the mount and picked up by a structure due North inside the dome. The arm on the left holds a counterweight which needs to be moved to balance the telescope depending on the liquid nitrogen level in the dewar. The top end of the tube will eventually hold the "redlens" instead of the counterweights shown here.





The lower section of the telescope tube will eventually hold the 4-shooter camera, replacing the counterweights currently in place.