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
