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| M28, A Globular Cluster, - this image cropped and reduced from the original photo, click on image above for a full frame full resolution picture. |
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Globular cluster M28 is one of the discoveries of
Charles Messier, who cataloged it on July 27, 1764. At about 18,000 to
19,000 light years distance, M28 with its linear diameter of 60 light years
appears considerably smaller and more compressed than its more impressive
neighbor, M22. It can be found just on the other side (right side) of the
top most lid star of the Teapot asterism. To resolve it into stars,
instruments of 10" or more are required. M28 was the second globular clusters where a millisecond pulsar was discovered, in 1987 (the first was M4). This one, 1620-26, is spinning around its axis once every 11 milliseconds. |
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10"
F6.3 Schmidt Cassegrain Telescope, (1600mm F.L.) Modified Canon
300D camera with Baader IR-UV filter and coma corrector, placed at the scopes prime focus |