Date:
Imaged at:
Equipement:
Optics:
Mount:
Camera:
Exposure:
Luminance:
Red:
Green:
Blue:
H-alpha:
21-12-2008 au 23-12-2008
Grand-Praz
RCO 16" f8.4
Paramount
STL-11000M
160 minutes
40 2x2
40 2x2
40 2x2
Messier:
NGC:
Name:
Constellation:
Distance:
Visual magnitude:
Description:
M 74
628
Pisces
32 million light-years
9.4