Globular Cluster M3

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Globular cluster M3, also known as NGC 5272. This is a really spectacular globular lying in the constellation Canes Venatici. The cluster apparently contains approximately 500,000 stars, and lies about 33,900 light years away from us. The cluster is approximately 8 billion years old and contains mostly old red stars, along with some younger blues stars. The orange star in the upper right of this frame is a double star designated as HR 5145 or SAO 82944

 Optics:Canon 500mm lens + 1.4x teleconverter 
Camera:astro-modified Canon T5i 
Exposure info:56 x 90 secs, iso800, f/5.6 
Filters used:none