NGC 2565

NGC 2565
NGC 2565
Observation data (J2000 epoch)
ConstellationCancer
Right ascension08h 19m 48.3092s[1]
Declination+22° 01′ 53.087″[1]
Redshift0.011948[1]
Heliocentric radial velocity3,582±1 km/s[1]
Distance183.5 ± 12.9 Mly (56.26 ± 3.95 Mpc)[1]
Group or clusterNGC 2545 group (LGG 156)
Apparent magnitude (V)12.6[1]
Characteristics
Type(R')SBbc?[1]
Size~106,600 ly (32.68 kpc) (estimated)[1]
Apparent size (V)1.9′ × 0.9′[1]
Other designations
IRAS 08168+2211, UGC 4334, MCG +04-20-026, Mrk 386, PGC 23362, CGCG 119-057[1]

NGC 2565 is a barred spiral galaxy in the constellation of Cancer. Its velocity with respect to the cosmic microwave background for is 3,814±16 km/s, which corresponds to a Hubble distance of 183.5 ± 12.9 Mly (56.26 ± 3.95 Mpc).[1] Additionally, 34 non-redshift measurements give a distance of 169.79 ± 4.64 Mly (52.057 ± 1.422 Mpc).[2] It was discovered by German-British astronomer J. Gerhard Lohse (bio-fr) in 1886.[3]

NGC 2565 is a galaxy whose nucleus shines brightly in the ultraviolet. It is listed in the Markarian catalogue as Mrk 386.[4]

NGC 2565 is surrounded by a ring, and is a starburst galaxy, as indicated by its entry in the NASA/IPAC Extragalactic Database.[1]

NGC 2545 Group

NGC 2565 is a member of the NGC 2545 group (also known as LGG 156). The other galaxies in the group are NGC 2545, UGC 4308, CGCG 119-44 and CGCG 119-56.[5]

Supernovae

Two supernovae have been observed in NGC 2565:

  • SN 1960M (type I, mag. 17) was discovered by Alercio Gomes on 26 October 1960.[6][7]
  • SN 1992I (type II, mag. 18) was discovered by Christian Buil (bio-fr) on 29 February 1992.[8][9]

See also

References

  1. ^ a b c d e f g h i j k l "Results for object NGC 2565". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 23 December 2024.
  2. ^ "Distance Results for NGC 2565". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 23 December 2024.
  3. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 2565". Celestial Atlas. Retrieved 23 December 2024.
  4. ^ Markaryan, B. E.; Lipovetskii, V. A. (1971). "Galaxies with an ultraviolet continuum. IV". Astrophysics. 7 (4): 299. Bibcode:1971Ap......7..299M. doi:10.1007/BF01003012.
  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. ^ Humason, M. L.; Gomes, Alercio M.; Kearns, C. E. (1961). "The 1960 Palomar Supernova Search". Publications of the Astronomical Society of the Pacific. 73 (432): 175. Bibcode:1961PASP...73..175H. doi:10.1086/127650.
  7. ^ "SN 1960M". Transient Name Server. IAU. Retrieved 23 December 2024.
  8. ^ Pollas, C.; Buil, C. (1992). "Supernova 1992I in NGC 2565". International Astronomical Union Circular (5464): 1. Bibcode:1992IAUC.5464....1P.
  9. ^ "SN 1992I". Transient Name Server. IAU. Retrieved 23 December 2024.