NGC6934 ( Caldwell 47): distance: 57000 al, taille: 7.1', mag: 8.9 , brillance de surface: 12.9mag/arc-min²

Instrument: CN212/12.4 + ST2000M/AO7 sur AP900
Temps de pose:  LRGB: (11,7,5,5)*600s, bin 1*1, Tc = -15°C, SQ: 21.3/arc sec**2
Date: 22/08/2012
Lieu: Bayons