Russell Croman Astrophotography  



The Crescent Nebula


Technical Details

Optics:14" f/10 RCOS Ritchey-Chrétien Cassegrain at f/7,Takahashi FRC-300 focal reducer.
Mount:Takahashi NJP Temma 2.
Camera:SBIG ST-10XME, CFW-8, AO-7.
Filters:Custom Scientific 3nm H-alpha, SBIG standard RGB.
Dates/Times:6, 8 September 2003.
Location:my backyard observatory in Austin, Texas.
Exposure Details:Ha = 3.5 hours. RGB = 10:10:10 minutes.
Processing:MaxImDL (align, combine), Photoshop (levels, curves, etc.), ImagesPlus (deconvolution).
Processing:This is an "enhanced natural color" image. The RGB and H-alpha data have been blended to form both the luminance and color information.