01/28/2016
Cheyenne, WY
Orion Sirius EQ-G Computerized GoTo Telescope Mount
Nikon d7100 with Nikkor 180 ED f/2.8 Lens @ f/5.0
PixInsight, Photoshop CS6
306x77 sec average over several nights
Orion Sirius equatorial mount offers great stability for unguided corrected images up to 180 secs in most wind conditions.