Exposure data
Telescope: Vixen VC200L (8" Cassegrain f=1260mm)
Camera: SBIG ST8300M
Filters: Baader HαRGB
Exposure times: Hα:3x5min R:5x5min+10x20s G:5x5min+10x20s B:5x5min+10x20s
Exposure time total: 1h 40min
Mount: 10Micron GM 1000 HPS
Location: Erdweg/Germany (500m)
Date: 2006-12-15 + 2014-03-08
Object data of M 42
Object type: Emission nebula
Size: 90' x 60'
Magnitude: 4.0 mag
Constellation: Orion
Distance: 1500 Ly
Notes: 12" Meade ACF f=2100mm was used for Trapezium
