M45
The Pleiades or Seven sisters
Perhaps the most famous star cluster on the sky, the Pleiades can be seen without binoculars from even the depths of a light-polluted city. Also known as the Seven Sisters and M45, the Pleiades is one of the brightest and closest open clusters. The Pleiades contains over 3000 stars, is about 400 light years away, and only 13 light years across. Quite evident in the above photograph are the blue reflection nebulae that surround the brighter cluster stars.
Imaging Data
Date: 9-11-2015
Location : Sudbury, Massachusetts
Optics : Astrotech 111 @ F/7
Filter(s) : None
Mount : Paramount MYT
Autoguiding : Costar Lacerta OAG
Camera : Canon T3i Full Spectrum
Exposure info : 15 x 300 ISO 800
Total Exposure : 1.2hours