This an image of 6 hours and 30 minutes using 5 minute sub-frames from a Canon XSi DSLR, modified. It was shot through an Astro-Tech 6" Ritchey-Chretien telescope at 1370mm focal length f/9.
The mount was a Takahshi EM-11 guided by an SBIG ST-237 through an E-finder at 100mm focal length.
Submitted by: Bill Bradford
Location: Ft. Griffin State Historic Site, Texas, USA
, for the great pic.