by Tom Gwilym
I used a combination of visible light for the Blue and Green in this photo. I then took a few H-Alpha and used that for the red componenent. I have about 15 images between 30 seconds to about 3 minutes fo the visible part, and about 10 H-Alpha of about 30 seconds up to 5 minutes.
Orion 80ED piggyback and autoguided with Meade 12" LX200
Canon 350D - Modifed
Stacked - Images Plus
Renton, WA --- http://www.eastsideastro.org/observatory