NGC 1313

NGC 1313
A Very Large Telescope (VLT) image of NGC 1313.
Credit: ESO.
Observation data (J2000.0 epoch)
ConstellationReticulum
Right ascension03h 18m 15.4s [1]
Declination−66° 29′ 50″ [1]
Redshift0.001568 [1]
Distance12.886 Mly[1]
Characteristics
TypeSB(s)d[1]
Apparent size (V)9.1 x 7.1 arcmin[1]
Other designations
Topsy Turvy Galaxy, PGC 12286, ESO 082- G 011
Preview warning: Page using Template:Infobox galaxy with unknown parameter "image_size"

NGC 1313 (also known as the Topsy Turvy Galaxy[2]) is a field galaxy[3] and a irregular galaxy[4] discovered by the Scottish astronomer James Dunlop on 27 September 1826.[5] It has a diameter of about 50,000 light-years, or about half the size of the Milky Way.[6]

NGC 1313 lies within the Virgo Supercluster.[7]

In 2007, a rare WO star was discovered in NGC 1313,[8] currently known by its only designation of [HC2007] 31. It is of spectral type WO3.[8] The derived absolute magnitude is about -5,[8] which is very high for a single WO star. (WOs usually have absolute magnitudes of about -1 to -4) This means that the WO is likely part of a binary or a small stellar association.[8]

Two supernovae have been observed in NGC 2841: SN 1962M (type II, mag. 11.7),[9] and SN 1978K (type II, mag. 16).[10]

  1. ^ a b c d e f "NASA/IPAC Extragalactic Database". Results for NGC 1313. Retrieved 17 May 2023.
  2. ^ "The Topsy-Turvy Galaxy NGC 1313". ESO. 23 November 2006.
  3. ^ "Taking a narrow view of lopsided galaxy". Gemini Observatory. 21 May 2010. Archived from the original on 12 June 2015. Retrieved 22 February 2016.
  4. ^ Nemiroff, R.; Bonnell, J., eds. (7 August 2009). "The Star Clusters of NGC 1313". Astronomy Picture of the Day. NASA.
  5. ^ Courtney Seligman. "NGC 1313 (= PGC 12286)". Celestial Atlas. Archived from the original on 2015-06-12. Retrieved 2016-02-22.
  6. ^ Nemiroff, R.; Bonnell, J., eds. (30 March 2010). "Unusual Starburst Galaxy NGC 1313". Astronomy Picture of the Day. NASA.
  7. ^ "Nearby Groups of Galaxies". ned.ipac.caltech.edu. Retrieved 2018-05-07.
  8. ^ a b c d Hadfield, L. J.; Crowther, P. A. (2007-10-01). "A survey of the Wolf-Rayet population of the barred, spiral galaxy NGC 1313". Monthly Notices of the Royal Astronomical Society. 381 (1): 418–432. arXiv:0708.2039. Bibcode:2007MNRAS.381..418H. doi:10.1111/j.1365-2966.2007.12284.x. ISSN 0035-8711. S2CID 3024190.
  9. ^ Transient Name Server entry for SN 1962M. Retrieved 29 March 2023.
  10. ^ Transient Name Server entry for SN 1957A. Retrieved 29 March 2023.