Exposure data

Telescope:    4.5" Newton f=440mm
Camera:    SBIG ST2000XM
Filters:    SBIG LRGB
Exposure times:    L:12x10min R:3x10min G:3x10min B:3x10min
Exposure time total:    3h 30min
Mount:    Vixen New Atlux
Location:    Erdweg/Germany (500m)
Date:    2008-02-11
 
Object data of M 97

Object type:    Planetary nebula
Size:    3.3'
Magnitude:    12.0 mag
Constellation:    Ursa Major
Distance:    2000 Ly
 
Object data of M 108

Object type:    Galaxy (SBc)
Size:    8.7' x 2.2'
Magnitude:    10.6 mag
Constellation:    Ursa Major
Distance:    45 Mio Ly