The Little Gem Nebula or NGC 6818 is a planetary nebula located in the constellation of Sagittarius. It has magnitude 10 and oval diameter of 15 to 22...
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NGC 6782 is a barred spiral galaxy located in the southern constellation of Pavo, at a distance of approximately 173 megalight-years from the Milky Way...
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NGC 6509 is a galaxy in the New General Catalogue. It is located in the constellation Ophiuchus. It is a Sc type spiral galaxy. Simbad Astronomical Database...
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Observations of Superthin Galaxies. II. IC 2233 and the Blue Compact Dwarf NGC 2537". The Astronomical Journal. 135 (1): 291–318. arXiv:0709.4249. Bibcode:2008AJ...
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