Sh2-155, The Cave Nebula in Cepheus
Image acquired at the Nighthawk
Observatory
LRGB = 210:60:60:60 minutes
Image data acquired remotely using
CCDAutoPilot2
RCOS 20RC f/8 Carbon Truss Ritchey-Chrétien with
RCOS Field Flattener
/ Corrector.
Software Bisque Paramount ME, SBIG
STL-11000XM