RC-Astro | Globular Cluster M12

Globular Cluster M12

Technical Details
Optics:	20" f/8 RCOS Ritchey-Chrétien Cassegrain
Camera:	SBIG ST-10XME, CFW-8, AO-7.
Mount:	Takahashi NJP Temma 2.
Filters:	SBIG Standard LRGB.
Dates/Times:	22 July 2003.
Location:	my backyard observatory in Austin, Texas.
Exposure Details:	LRGB = 52:16:10:12 minutes.