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Object description |
NGC 6200 is an open star cluster in the constellation (Ara) Altar and is classified as type III 2 m according to Trumpler. With an apparent diameter of just under 15 arcminutes it lies at a distance of about 6700 light-years in the middle of the Ara OB2 star association. It was discovered by John Herschel on July 1, 1834.
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NGC 6204 is a small compact open
star cluster with an apparent diameter of only 5 arcminutes. It is classified
as type I 2 p according to Trumpler. NGC 6204
contains about 36 stars and is located about 3500 light-years from the solar
system. The cluster was discovered by James Dunlop on May 13,
1826. Directly southeast lies the much younger star cluster Hogg 22. With a distance of about 9000 light-years it is nearly 3 times farther away from the solar system than NGC 6204. 22 stars are assigned to Hogg 22. The age of the stars is estimated to be only a few million years. « Click here or the thumbnail to load a large annoted image. |
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