RC-Astro | The Little Dumbbell Nebula

The Little Dumbbell Nebula

Technical Details
Optics:	14" f/10 RCOS Ritchey-Chrétien Cassegrain,Astro-Physics 0.75x Focal Reducer (yielding f/7.5).
Camera:	SBIG ST-10XME, CFW8, AO-7.
Mount:	Takahashi NJP Temma 2.
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.).