Russell Croman Astrophotography  

 

 

Globular Cluster M15


 

Technical Details

Optics:14" f/10 RCOS Ritchey-Chrétien Cassegrain at f/7.1,Takahashi FRC-300 focal reducer.
Mount:Takahashi NJP Temma 2.
Camera:SBIG ST-10XME, CFW-8, AO-7.
Filters:SBIG Standard LRGB.
Dates/Times:25 August 2003.
Location:my backyard observatory in Austin, Texas.
Exposure Details:LRGB = 30:10:10:7 minutes (blue interrupted by clouds).