Exposure data
Telescope: 4.5″ Newton f=440mm
Camera: SBIG ST2000XM
Filters: SBIG LRGB + Astronomik Hα (13nm)
Exposure times: Hα: 6x5min L: 48x10min R: 6x5min G: 6x5min B: 6x5min
Exposure time total: 6h
Mount: Vixen New Atlux
Location: Erdweg/Germany (500m)
Date: 2008-09-28+29
Object data of M 33
Object type: Galaxy (Sc)
Size: 70.8′ x 41.7′
Magnitude: 5.7 mag
Constellation: Triangulum
Distance: 3.1 Mio Ly
