Exposure data
Telescope: Vixen R200SS f=800mm
Camera: SBIG ST2000XM
Filters: SBIG LRGB
Exposure times: L: 4x5min R: 3x5min G: 3x5min B: 3x5min (L: 1×1 RGB: 2×2)
Exposure time total: 1h 25min
Mount: Vixen GPDX
Location: Erdweg/Germany (500m)
Date: 2004-04-29
Object data of M 81
Object type: Galaxy (Sb)
Size: 26.9′ x 14.1′
Magnitude: 7.0 mag
Constellation: Ursa Major
Distance: 12 Mio Ly
Object data of M 82
Object type: Galaxy (irregular)
Size: 11.2′ x 4.3′
Magnitude: 8.6 mag
Constellation: Ursa Major
Distance: 14 Mio Ly
