The Crescent Nebula in Hydrogen-alpha

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, CFW8.
Filters:	Custom Scientific 3nm H-alpha.
Dates/Times:	8 September 2003.
Location:	my backyard observatory in Austin, Texas.
Exposure Details:	3.5 hours.

The Crescent Nebulain Hydrogen-alpha