RC-Astro | The Dumbbell Nebula in Hydrogen-alpha

The Dumbbell Nebula
in Hydrogen-alpha

Technical Details
Optics:	14" f/10 RCOS Ritchey-Chrétien Cassegrain
Camera:	SBIG ST-10XME, CFW-8.
Mount:	Takahashi NJP Temma 2.
Filters:	Custom Scientific 3nm H-alpha.
Dates/Times:	14 July 2003.
Location:	my backyard observatory in Austin, Texas.
Exposure Details:	200 minutes.