Re: Winter project - Cradle of Starbirth


Eric Weiner
 

Roland,
At the risk of opening up a can of worms (sooo many opinions on this matter), do you mind if ask what the passband width of H-alpha filter you used for this image is?  It seems like it would necessarily need to be fairly wide with 10s subs.  But then again, M42 is pretty bright. 
 
Eric

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