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NGC 5101

NGC 5101
NGC 5101 with legacy surveys
Observation data (J2000 epoch)
ConstellationHydra
Right ascension13h 21m 46.2s[1]
Declination−27° 25′ 50″[1]
Redshift0.006231[1]
Heliocentric radial velocity1868 ± 3 km/s[1]
Distance89 Mly
(27.4 Mpc)[2]
Group or clusterNGC 5061 group (LGG 341)
Apparent magnitude (V)11.6[1]
Characteristics
Type(R)SB0/a(rs)[1]
Size~150,000 ly (45.91 kpc) (estimated)[1]
Apparent size (V)5.4′ × 4.6′[1]
Other designations
ESO 508- G 058, AM 1319-271, IRAS 13190-2709, UGCA 351, MCG -04-32-008, PGC 46661[1]

NGC 5101 is a lenticular galaxy in the constellation Hydra. It was discoverd by German-British astronomer William Herschel on 28 March 1786.[3][4]

NGC 5101 is separated in the sky from the spiral galaxy NGC 5078 by about 0.5 degrees, and both are believed to be at the same distance from the Earth. This would mean they are approximately 800,000 light-years apart. Both galaxies are believed to be about the size of the Milky Way.[5]

NGC 5061 group

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NGC 5101 is a member of the NGC 5061 group (also known as LGG 341). It contains 10 galaxies, including NGC 5061, NGC 5078, NGC 5085, IC 874, IC 4222, IC 4231, and three galaxies from the ESO catalogue.[6]

Supernova

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One supernova has been observed in NGC 5101: SN 1986B (Type I, mag. 17) was discovered by Bruno Leibundgut and L. Cameron on 13 February 1986.[7][8]

References

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  1. ^ a b c d e f g h i "Results for NGC 5101". NASA/IPAC Extragalactic Database. Retrieved 2007-04-03.
  2. ^ "Distance Results for NGC 5101". NASA/IPAC Extragalactic Database. Retrieved 2010-05-14.
  3. ^ Herschel, William (1789). "Catalogue of a Second Thousand of New Nebulae and Clusters of Stars; with a Few Introductory Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London. 79: 212–255. Bibcode:1789RSPT...79..212H. doi:10.1098/rstl.1789.0021.
  4. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 5101". Celestial Atlas. Retrieved 13 August 2025.
  5. ^ Nemiroff, Robert; Bonnell, Jerry. "NGC 5101 and Friends". APOD. Retrieved 21 April 2019.
  6. ^ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
  7. ^ Leibundgut, B.; Cameron, L. (1986). "Supernova 1986B in NGC 5105". International Astronomical Union Circular (4177): 1. Bibcode:1986IAUC.4177....1L.
  8. ^ "SN 1986B". Transient Name Server. IAU. Retrieved 5 December 2024.
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