Date:
Imaged at:
Equipement:
Optics:
Mount:
Camera:
Exposure:
Luminance:
Red:
Green:
Blue:
H-alpha:
9,10-11-2015
Grand-Praz
RCO 16" f 8.4
Paramount
STL-11000M
160 min'
120min
120 min
120 min
Messier:
NGC:
Name:
Constellation:
Distance:
Visual magnitude:
Description:
891
Andromeda
30 millions light-years
10.8
Edge on unbarred spiral galaxy