M 17 Swan Nebula, hydrogen alpha

Image Link
https://www.ocastronomers.org/wp-content/uploads/2018/12/M17-12m-Ha-cdshp3ddpcrgR1.jpg

Photographer Bill Hall

Optics Used 6" F/4 newtonian

Camera Used ST-402ME

Settings / Equipment 12 minute exposure, 3 min subframes

Location YoraLinda, CA 7/30/10

Date / Time November 27, 2012 12:00 am

Copyright 2011 Bill Hall

Additional Information