NGC 1309

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NGC 1309
NGC 1309HST.jpg
NGC 1309 imaged by the Hubble Space Telescope
Observation data (J2000.0 epoch)
Constellation Eridanus
Right ascension 03h 22m 06.5966s [1]
Declination −15° 23′ 59.882″ [1]
Redshift 0.007125 [1]
Heliocentric radial velocity 2136 ± 4 km/s [1]
Distance 120 Mly (36 Mpc) [2]
Group or cluster NGC 1309 Group (LGG 92)
Apparent magnitude  (V)12.0 [1]
Characteristics
Type SA(s)bc [1]
Size~66,700  ly (20.46  kpc) (estimated) [1]
Apparent size  (V)2.2 x 2.0 arcmin [1]
Other designations
IRAS 03197-1534, MCG -03-09-028, PGC 12626 [1]

NGC 1309 is a spiral galaxy located approximately 120 million light-years away, appearing in the constellation Eridanus. It was discovered by German-British astronomer William Herschel on 3 October 1785. [3] [4]

Contents

NGC 1309 is about 75,000 light-years across, and is about 3/4s the width of the Milky Way. Its shape is classified as SA(s)bc, meaning that it has moderately wound spiral arms and no ring. Bright blue areas of star formation can be seen in the spiral arms, while the yellowish central nucleus contains older-population stars. NGC 1309 is one of over 200 members of the Eridanus Group of galaxies. [5]

NGC 1309 group

NGC 1309 is the brightest member of a trio of galaxies named after it. The other two galaxies in the NGC 1309 group (also known as LGG 92) are MCG -03-09-027 and UGCA  71. [6]

Supernovae

Two supernovae have been observed in NGC 1309:

SN 2012Z imaged by the Hubble Space Telescope Supernova 2012Z in spiral galaxy NGC 1309, annotated.jpg
SN 2012Z imaged by the Hubble Space Telescope

See also

References

  1. 1 2 3 4 5 6 7 8 9 "NASA/IPAC Extragalactic Database". Results for object NGC 1309. Retrieved 8 Dec 2008.
  2. ↑ Riess, Adam (Jul 2007). "The Final SHOE; Completing a Rich Cepheid Field in NGC 1309". Hubble Space Telescope Proposal ID #11329 (Cycle 16): 11329. Bibcode:2007hst..prop11329R.
  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 1309". Celestial Atlas. Retrieved 8 December 2024.
  5. ↑ "Hubble Snaps Images of a Pinwheel-Shaped Galaxy". News Release: STScI-2006-07. NASA. Retrieved 8 Dec 2008.
  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. ↑ Kushida, R.; Nakano, S.; Wang, J.; Qiu, Y. L.; Kushida, Y. (2002). "Supernova 2002fk in NGC 1309". International Astronomical Union Circular (7973): 2. Bibcode:2002IAUC.7973....2K.
  8. ↑ "SN 2002fk". Transient Name Server. IAU . Retrieved 24 July 2025.
  9. ↑ Marion, G.H.; et al. (Jul 2003). "Near-Infrared Spectra of Type Ia Supernovae". The Astrophysical Journal. 591 (1): 316–333. arXiv: astro-ph/0306470 . Bibcode:2003ApJ...591..316M. doi:10.1086/375290. S2CID   17925961.
  10. ↑ "Supernova 2012Z in spiral galaxy NGC 1309, annotated". ESA/Hubble Press Release. Retrieved 8 August 2014.
  11. ↑ Cenko, S. B.; Li, W.; Filippenko, A. V.; Brimacombe, J.; Meyer, S.; Emig, K.; Kaleida, C.; Mamajek, E. E.; Cohen, D. P.; Silverman, J. M.; Ganeshalingam, M. (2012). "Supernova 2012Z in NGC 1309 = PSN J03220535-1523156". Central Bureau Electronic Telegrams (3014): 1. Bibcode:2012CBET.3014....1C.
  12. ↑ "SN 2012Z". Transient Name Server. IAU . Retrieved 24 July 2025.
  13. ↑ "The Star that Survived a Supernova". lco.global. Retrieved 2022-06-22.
  14. ↑ McCully, Curtis; Jha, Saurabh W.; Scalzo, Richard A.; Howell, D. Andrew; Foley, Ryan J.; Zeng, Yaotian; Liu, Zheng-Wei; Hosseinzadeh, Griffin; Bildsten, Lars; Riess, Adam G.; Kirshner, Robert P. (2022-02-01). "Still Brighter than Pre-explosion, SN 2012Z Did Not Disappear: Comparing Hubble Space Telescope Observations a Decade Apart". The Astrophysical Journal. 925 (2): 138. arXiv: 2106.04602 . Bibcode:2022ApJ...925..138M. doi: 10.3847/1538-4357/ac3bbd . ISSN   0004-637X.
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