Exposure data
Telescope: 4.5" Newton f=440mm
Camera: SBIG ST8300M
Filters: Baader HαLRGB
Exposure times: Hα:12x10min L:78x10min R:12x10min G:12x10min B:12x10min
Exposure time total: 21h
Mount: 10 Micron GM 1000 HPS
Location: Erdweg/Germany (500m)
Date: 2013-02-09+10+11 + 2013-03-03+04
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
Notes: Galactic Cirrus, also known as Integrated Flux Nebula is spread over the whole image field. North is right.
