Sentences with phrase «by open star cluster»
Not exact matches
The Soul Nebula is an open cluster of stars surrounded by a cloud of dust and gas over 150 light - years across and located about 6,500 light - years from Earth in the constellation Cassiopeia, near the Heart Nebula.
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Immediately south of the star cloud, separated by a dark band, is the emission nebula IC 1283 - 1284, with two adjacent reflection nebulae, NGC 6589 and NGC 6590, all these nebulae associated with the little conspicuous open cluster NGC 6595.
An average open cluster has spread most of its member stars along its path after several 100 million years; only few of them have an age counted by billions of years.
Society for Nebulous Knowledge, Open Star Cluster in Sagittarius by Anabella Gaposchk circa 1903, silver gelatin photogram (baking soda) 2002 (8» x5»).