2011fe in M101, SN 2012aw in M95, and SN 2012cg in NGC 4424". New Astronomy. 20: 30–37. arXiv:1209.4692. Bibcode:2013NewA...20...30M. doi:10.1016/j.newast...
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NGC 950 is a barred spiral galaxy in the constellation Cetus. It is approximately 205 million light-years away from the Solar System and has a diameter...
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NGC 4701 is an unbarred spiral galaxy located in the constellation Virgo. Its velocity with respect to the cosmic microwave background is 1054 ± 24 km/s...
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NGC 4614 is a barred lenticular galaxy in the New General Catalog. It is located in the constellation of Coma Berenices. It was discovered in 1864 by...
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[stars] of the δ Cepheid type]. Astronomische Nachrichten (in German). 196 (4692): 201–208. Bibcode:1913AN....196..201H. From p. 204: "Zunächst ergibt sich...
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[stars] of the δ Cephei type]. Astronomische Nachrichten (in German). 196 (4692): 201–208. Bibcode:1913AN....196..201H. Shapley, H. (1918). "Globular Clusters...
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the technique of reverberation mapping. For instance, the spiral galaxy NGC 4395 at a distance of about 4 Mpc appears to contain a black hole with mass...
27 KB (3,059 words) - 18:43, 21 December 2024