Castro, N. (December 2020). "Three open clusters containing Cepheids: NGC 6649, NGC 6664, and Berkeley 55". Astronomy & Astrophysics. 644: A136. arXiv:2009...
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"Membership of cepheids and red giants in 8 open clusters : NGC 129, 6067, 6087, 6649, 6664, IC 4725, LY 6, RU 79", Astronomy and Astrophysics Supplement...
6 KB (456 words) - 06:33, 22 July 2024
2020-06-26. "ngc 1857". sim-id. Retrieved 2020-06-26. "ngc 2192". sim-id. Retrieved 2020-06-26. "ngc 2215". sim-id. Retrieved 2020-06-26. "ngc 2243". sim-id...
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II Program. The catalogue contains 400 objects. All objects are from the NGC. All objects are visible in mid northern latitudes, since they were all observed...
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Embedded within Messier 24. Associated with Messier 17. Associated with NGC 6820. Embedded within the Iris Nebula. There are some errors in Collinder's...
60 KB (535 words) - 18:22, 29 February 2024
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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NGC 235 is a lenticular galaxy in the constellation of Cetus. Its companion, PGC 2570, appears in the line of sight of NGC 235, but has no relation with...
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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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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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(January 1998). "The interstellar chemistry of PAH cations". Nature. 391 (6664): 259–260. Bibcode:1998Natur.391..259S. doi:10.1038/34602. PMID 9440689....
18 KB (2,096 words) - 13:24, 17 August 2024