NGC 3449

NGC 3449
NGC 3449 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationAntlia
Right ascension10h 52m 53.6609s[1]
Declination−32° 55′ 39.202″[1]
Redshift0.010928±0.000019[1]
Heliocentric radial velocity3,276±6 km/s[1]
Distance151.97 ± 3.98 Mly (46.595 ± 1.221 Mpc)[1]
Group or clusterNGC 3449 Group (LGG 222)
Apparent magnitude (V)12.19[1]
Characteristics
TypeSA(s)ab[1]
Size~222,500 ly (68.22 kpc) (estimated)[1]
Apparent size (V)3.3′ × 1.0′[1]
Other designations
ESO 376- G 025, IRAS 10505-3240, MCG -05-26-010, PGC 32666[1]

NGC 3449 is a spiral galaxy in the constellation of Antlia. Its velocity with respect to the cosmic microwave background is 3,609±17 km/s, which corresponds to a Hubble distance of 173.6 ± 12.2 Mly (53.23 ± 3.74 Mpc).[1] However, 20 non-redshift measurements give a closer mean distance of 151.97 ± 3.98 Mly (46.595 ± 1.221 Mpc).[2] It was discovered by British astronomer John Herschel on 29 April 1834.[3][4]

NGC 3449 group

NGC 3449 is the namesake of a trio of galaxies called the NGC 3449 group (also known as LGG 222). The other two galaxies are ESO 437- G 067 and ESO 437- G 065.

Supernovae

Two supernovae have been observed in NGC 3449:

See also

References

  1. ^ a b c d e f g h i j k "Results for object NGC 3449". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 1 August 2025.
  2. ^ "Distance Results for NGC 3449". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 1 August 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 3449". Celestial Atlas. Retrieved 1 August 2025.
  5. ^ Howerton, S.; Drake, A. J.; et al. (2012). "Supernova 2012bu in NGC 3449 = PSN J10525661-3256071". Central Bureau Electronic Telegrams (3088): 1. Bibcode:2012CBET.3088....1H.
  6. ^ "SN 2012bu". Transient Name Server. IAU. Retrieved 1 August 2025.
  7. ^ Dong, Subo; Davis, A. B.; et al. (2015). "ASAS-SN Discovery of a Probable Supernova in NGC 3449". The Astronomer's Telegram. 6886: 1. Bibcode:2015ATel.6886....1D.
  8. ^ Simon, J.; Morrell, N.; Phillips, M. M. (2015). "Las Campanas Spectral Classification of ASASSN-15aj". The Astronomer's Telegram. 6905: 1. Bibcode:2015ATel.6905....1S.


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