Exposure data
Telescope: 4.5" Newton f=440mm
Camera: SBIG ST8300M
Filters: Baader LRGB
Exposure times: L:30x8min+12x20s R:6x8min G:6x8min B:6x8min
Exposure time total: 6h 8min
Mount: 10 Micron GM 1000 HPS
Location: Erdweg/Germany (500m)
Date: 2013-08-02+03 + 2013-12-27
Object data of M 31
Object type: Galaxy (Sb)
Size: 186' x 62'
Magnitude: 3.5 mag
Constellation: Andromeda
Distance: 2.5 Mio Ly
