Exposure data
Telescope: 4.5″ Newton f=440mm
Camera: SBIG ST2000XM
Filters: SBIG LRGB
Exposure times: L: 40x3min R: 15x3min G: 15x3min B: 15x3min (L: 1×1 RGB: 2×2)
Exposure time total: 4h 15min
Mount: Vixen New Atlux
Location: Erdweg/Germany (500m)
Date: 2008-12-27
Object data of M 45
Object type: Open star cluster (I 3 r) with reflection nebula
Size: 110′
Magnitude: 1.6 mag
Constellation: Taurus
Distance: 440 Ly
