Print This PostOrion Nebula (M42) Imaged by Donal McDonnell
Donal McDonnell — By Richard Kacerek on August 8, 2009 at 7:34 pmThe exposure details / channel assignments are as follows:
- Ha= 25m (R)
- SII = 35m (G)
- OIII = 35m (B)
Taken on Takahashi FSQ106ED at F5 with an SBIG STL6303 CCD and Astronomic Filters.
Click here for a larger image.
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