My roll off roof observatory houses the 10 inch
TEC Mak Cass on a Paramount ME. The roof slides back
and forward via a pulley system.

My second observatory stands adjacent to the main roll off
roof one and
measures 3 x 4 x 7ft which houses the AP1200 mount
and smaller telescopes. The AP1200 mount is a superbly engineered piece of
equipment with accurate pointing and very low periodic error of
less than 5 arc seconds.
Telescopes shown are the Taks FSQ and SKY90 with an STL11k attached.
