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5-12-07 Adam Stuart


Miami, FL

Globular Star Cluster M3
Messier 3 (also known as M3 or NGC 5272) is a globular cluster in the constellation Canes Venatici. It was discovered by Charles Messier in 1764, and resolved into stars by William Herschel around 1784. This cluster is one of the largest and brightest, and is made up of around 500,000 stars. It is located at a distance of about 33,900 light-years (6 trillion miles x 33,900) away from Earth. M3 has an apparent magnitude of 6.2, making it visible to the naked eye under dark conditions. From a moderately-sized telescope, the cluster is fully defined.

SXV-H9,2.75 arc-sec/pixel
Astronomik Type II clear and Lumicon DSF. Stellarvue Nighthawk at f/6 and 480 mm FL, piggybacked on LX200, unguided. Integrations 45 x 120 seconds, unbinned 1x1. Sigma combined in Ray Gralak's pre-beta 11. full exif

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