Two Globular Clusters: M53 and NGC5053

« PreviousBack to Astrophotography GalleryNext »

M53 and NGC5053, two globular clusters in the constellation Coma Berenices. The much larger M53 is in the lower left of this image, while the smaller and fainter NGC5053 is in the upper right. What I particularly like about this image is that there are two globulars close enough together (from our viewpoint) to appear in the same frame. The fainter NGC5053 has far fewer stars than its companion, and its classification as a globular cluster, rather than an open cluster, was apparently controversial for some time

 Optics:Canon 500mm lens + 1.4x teleconverter 
Camera:astro-modified Canon T5i 
Exposure info:26 x 90 secs, iso800, f/5.6 
Filters used:none