NGC 2595

NGC 2595
NGC 2595 imaged by SDSS
Observation data (J2000 epoch)
ConstellationCancer
Right ascension08h 27m 42.0377s[1]
Declination+21° 28′ 44.812″[1]
Redshift0.014457±0.000002[1]
Heliocentric radial velocity4,334±1 km/s[1]
Distance224.15 ± 11.85 Mly (68.725 ± 3.632 Mpc)[1]
Group or clusterNGC 2595 group (LGG 159)
Apparent magnitude (V)13.7g[1]
Characteristics
TypeSAB(rs)c[1]
Size~211,100 ly (64.71 kpc) (estimated)[1]
Apparent size (V)1.65′ × 1.33′[1]
Other designations
IRAS 08247+2138, 2MASX J08274198+2128447, UGC 4422, MCG +04-20-062, PGC 23725, CGCG 119-109[1]

NGC 2595 is a spiral galaxy in the constellation of Cancer. Its velocity with respect to the cosmic microwave background is 4,576±17 km/s, which corresponds to a Hubble distance of 220.1 ± 15.4 Mly (67.49 ± 4.73 Mpc).[1] This is in good agreement with 24 non-redshift measurements which give a distance of 224.15 ± 11.85 Mly (68.725 ± 3.632 Mpc).[2] It was discovered by German-British astronomer William Herschel on 11 January 1787.[3][4]

NGC 2595 group

The galaxy NGC 2595 is the largest galaxy in a group of galaxies that bears its name. The NGC 2595 group (also known as LGG 159) includes at least 10 galaxies, including NGC 2582, NGC 2598, UGC 4386, UGC 4399, UGC 4400, and UGC 4424.[5]

Supernova

One supernova has been observed in NGC 2595: SN 1999aa (Type Ia-pec, mag. 15.5) was discovered by Ron Arbour,[6] and independently by the Beijing Astronomical Observatory, on 11 February 1999, and by Reiki Kushida on 13 February 1999.[7][8] This supernova was overluminous and exhibited one of the most slowly declining brightnesses known.[9]

See also

References

  1. ^ a b c d e f g h i j k "Results for object NGC 2595". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 15 July 2025.
  2. ^ "Distance Results for NGC 2595". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 15 July 2025.
  3. ^ Herschel, W. (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 2595". Celestial Atlas. Retrieved 15 July 2025.
  5. ^ 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.
  6. ^ Arbour, R.; Armstrong, M.; Schwartz, M. (12 February 1999). "Supernova 1999aa in NGC 2595". International Astronomical Union Circular. 7108: 1. Bibcode:1999IAUC.7108....1A.
  7. ^ Qiao, Q. Y.; Wei, J. Y.; Qiu, Y.L.; Hu, J. Y. (15 February 1999). "Supernova 1999aa in NGC 2595". International Astronomical Union Circular. 7109: 1. Bibcode:1999IAUC.7109....3Q.
  8. ^ "SN 1999aa". Transient Name Server. IAU. Retrieved 15 July 2025.
  9. ^ Krisciunas, K.; Hastings, N. C.; Loomis, K; McMillan, R; Rest, A; Riess, A. G.; Stubbs, C. (2000). "Uniformity of (V–Near-Infrared) Color Evolution of Type Ia Supernovae and Implications for Host Galaxy Extinction Determination". The Astrophysical Journal. 539: 658–674. arXiv:astro-ph/9912219. Bibcode:2000ApJ...539..658K. doi:10.1086/309263.


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