Russell Croman Astrophotography  



The Swan Nebula


Technical Details

Optics:14" f/10 RCOS Ritchey-Chr├ętien Cassegrain at f/10.
Camera:SBIG ST-10XME, CFW8.
Mount:Takahashi NJP Temma 2.
Filters:Custom Scientific 3nm Sulphur-II, H-alpha, Oxygen-III.
Dates/Times:16-17 May, 21, 29 June.
Location:my backyard observatory in Austin, Texas.
Exposure Details:R:G:B = 30:30:30 minutes (2-minute sub-exposures),Ha, OIII = 140, 180 minutes (20-minute sub-exposures).
Processing:In this image, the straight RGB information was enhanced by applying the H-alpha data to the red channel, and the O-III data to the green and blue channels.