NGC 1398

NGC 1398
NGC 1398 imaged by FORS2 instrument at ESO's VLT.
Observation data (J2000 epoch)
ConstellationFornax
Right ascension03h 38m 52.0633s[1]
Declination−26° 20′ 15.583″[1]
Redshift0.004657[1]
Distance61.8 ± 4.3 Mly (18.96 ± 1.33 Mpc)[1]
Apparent magnitude (V)10.63[1]
Characteristics
Type(R')SB(r)ab[1]
Size~291,900 ly (89.51 kpc) (estimated)[1]
Apparent size (V)7.1′ × 5.4′[1]
Other designations
ESO 482-22, IRAS 03367-2629, MCG -04-09-040, PGC 13434[1]

NGC 1398 is an isolated barred spiral galaxy exhibiting a double ring structure. It is located 65 million light years from the Earth, in the constellation of Fornax.[2][3] The galaxy, with a diameter of approximately 292,000 light years, is bigger than the Milky Way. Over 100 billion stars are in the galaxy.[4] The discovery credit for NGC 1398 is often given to Friedrich Winnecke of Karlsruhe, Germany, who observed it on 17 December 1868, while he was searching for comets.[5] German astronomer Wilhelm Tempel had first observed it on 9 October 1861, but he did not publish his observation until 1882.[6]

Supernovae

Two supernovae have been observed in NGC 1398:

  • SN 1996N (Type Ib/c, mag. 16) was discovered by the Perth Astronomical Research Group on 12 March 1996.[7][8]
  • SN 2025zi (Type Iax [02cx-like], mag. 20.07) was discovered by BlackGEM on 21 January 2025.[9]

See also

References

  1. ^ a b c d e f g h i "NED results for object NGC 1398". NASA/IPAC Extragalactic Database. Retrieved 17 February 2015.
  2. ^ "NGC 1398". noao.edu. Archived from the original on 9 August 2014. Retrieved 17 February 2015.
  3. ^ Moore, E. M.; Gottesman, S. T. (1 July 1995). "The Barred Spiral Galaxy NGC 1398 and Its Pattern Speed". The Astrophysical Journal. 447: 159. Bibcode:1995ApJ...447..159M. doi:10.1086/175862. Retrieved 17 February 2015.
  4. ^ "Dark Energy Survey kicks off second season cataloging the wonders of deep space". fnal.gov. 18 August 2014. Retrieved 17 February 2015.
  5. ^ Stephen James O'Meara (12 April 2007). Deep-Sky Companions: Hidden Treasures. Cambridge University Press. p. 110. ISBN 978-1-139-46373-7.
  6. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 1398". Celestial Atlas. Retrieved 31 July 2025.
  7. ^ Williams, A.; Martin, R.; Germany, L.; Schmidt, B.; Stathakis, R.; Johnston, H. (1996). "Supernova 1996N in NGC 1398". International Astronomical Union Circular (6351): 1. Bibcode:1996IAUC.6351....1W.
  8. ^ "SN 1996N". Transient Name Server. IAU. Retrieved 10 December 2024.
  9. ^ "SN 2025zi". Transient Name Server. IAU. Retrieved 23 January 2025.
  10. ^ "A Galaxy Adrift". NOIRLab. Retrieved 13 October 2021.
  • Media related to NGC 1398 at Wikimedia Commons
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