Exposure data
Telescope: 12″ Meade ACF f=2100mm with Reducer Lumicon Giant Easy Guider
Camera: SBIG ST2000XM
Filters: SBIG LRGB + Astronomik Hα (13nm)
Exposure times: Hα: 46x5min L: 12x5min R: 12x5min G: 12x5min B: 12x5min
Exposure time total: 7h 40min
Mount: Vixen New Atlux
Location: Erdweg/Germany (500m)
Date: 2008-12-27+28
Object data of Barnard 33
Object type: Dark nebula embedded in an emission nebula
Size: 8′ x 6′
Magnitude: –
Constellation: Orion
Distance: 1500 Ly
