Messier 51

M51

This spiral galaxy was first discovered by Charles Messier in 1773. A popular target among amateur astrophotographers, the spiral structure is readily apparent. However, it wasn't very visible to Messier, he described it as a faint nebula patch without stars. Lord Rosse was the first to see it's spiral structure in 1845. The small companion galaxy is NGC 5195.

 

Telescope: Astro-Physics 160mm EDF f7.5 Designation: M51
Mount: Astro-Physics AP1200GTO
Constellation: Canes Venatici
Camera: SBIG ST10XME with Astrodon Filters Distance: Approx 31 Million Light Years
Guiding: SBIG ST402 via Mini Borg 60mm Type: Spiral Galaxy
Exposure: 5 hours 40 minutes Position: R.A. 13 hr 30 min , Dec +470 12'
Processed using CCDStack, PhotoShop CS3 Date: 13-14 March 2008
Acquisition: CCDAutopilot/CCDSoft/The Sky 6/M1OASYS Location: Deerlick Astronomy Village