Russell Croman Astrophotography  

 

 

The Little Dumbbell Nebula


 

Technical Details

Optics:14" f/10 RCOS Ritchey-Chrétien Cassegrain,Astro-Physics 0.75x Focal Reducer (yielding f/7.5).
Mount:Takahashi NJP Temma 2.
Camera:SBIG ST-10XME, CFW8, AO-7.
Filters:SBIG Standard LRGB.
Dates/Times:20 January, 4 February 2003.
Location:my backyard observatory in Austin, Texas.
Exposure Details:LRGB = 60:20:20:30 minutes (5-minute sub-exposures).
Processing:MaxImDL (combine), CCDSharp (deconvolution), Photoshop (levels, curves, etc.).