Messier 13 NGC 6205. The globular cluster in the Constallation of Hercules lies at a distance of approximately 25,000 light years. It shines with a total light equivalent to a 6th magnitude star. It has an angular diameter of 23 arc minutes corresponding to a linear diameter of approximately 145 light years. In the central portion of the cluster it is estimated that there are one or two stars per cubic light year. All of the stars in the cluster should be the same age, however it appears that during M13's journey around the Galaxy it picked up a field star. This young blue star is of spectral class B2 and is tagged Bernard #29. It has been verified by radial velocity measurements that the star belongs to the cluster. The image was photographed using a 8 inch SCT and a Canon 450D (modified) DSLR, 4 60 second raw data exposures, a Bias and a dark and post processing using Images Plus software.