Wikipedia

NGC 2595

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
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 group

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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 [fr], NGC 2598 [fr], UGC 4386, UGC 4399 [d], UGC 4400, and UGC 4424 [d].[5]

Supernova

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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

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References

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  1. 1 2 3 4 5 6 7 8 9 10 11 "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): 3. 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 (2): 658–674. arXiv:astro-ph/9912219. Bibcode:2000ApJ...539..658K. doi:10.1086/309263.
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