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Anne’s Image of the Day: Open Cluster NGC 6604

4 May 2014, 12:32 UTC
Anne’s Image of the Day: Open Cluster NGC 6604
(200 words excerpt, click title or image to see full post)

May 4, 2014 NGC 6604, an open star cluster in Serpens Cauda Image Credit: ESO NGC 6604 (the bright grouping of stars towards to the upper left of this image) is a very young open star cluster with an age of some 4-5 million years in the star-forming (H II) region Sh2-54, located about 5,540 [continue reading]

May 4, 2014
NGC 6604, an open star cluster in Serpens Cauda

Image Credit: ESO
NGC 6604 (the bright grouping of stars towards to the upper left of this image) is a very young open star cluster with an age of some 4-5 million years in the star-forming (H II) region Sh2-54, located about 5,540 light-years away from Earth in the northern constellation of Serpens Cauda (the Serpent’s Tail).
The name Sh2-54 means that it is the 54th object in a catalog of 312 emission nebulae (H II regions). The first edition was published by Stewart Sharpless in 1953 with 142 objects (Sh1) and the second and final version in 1959 with 312 objects (Sh2).
NGC 6604 is the densest part of a more widely scattered association – called Serpens OB – containing about one hundred brilliant blue-white stars. (The first part of ...

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