NGC 2525 is abarred spiral galaxy located in the constellationPuppis. It is located at a distance of about 70 millionlight years from Earth, which, given its apparent dimensions, means that NGC 2525 is about 46,000 light years across. It was discovered byWilliam Herschel on February 23, 1791.[4][5]
The galaxy has a bar and two mainspiral arms with high surface brightness.HII regions are observed in the arms. The brightest stars of the galaxy haveapparent magnitude around 22. Its nucleus is small and bright.[6] In the centre of the galaxy is predicted to lie asupermassive black hole whose mass is estimated to be between 1.1 and 44 millionsolar masses, based on the spiral arm pitch angle.[7][8]
Onesupernova has been observed in NGC 2525,SN 2018gv. It was discovered on byKōichi Itagaki on 15 January 2018 at magnitude 16.5,[9] and it was identified spectrographically as aType Ia supernova 10 to 15 days before maximum.[10] The supernova was also observed by ATLAS on 2018 January 14.5 UT at magnitude 18.1.[11] It reached a peak magnitude of 12.8. ESA/Hubble released a video of the supernova in October 2020.[12][13]
^Seligman, Courtney."NGC 2525".Celestial Atlas. Retrieved19 November 2018.
^Sandage, A., Bedke, J. (1994),The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
^Davis, Benjamin L.; Berrier, Joel C.; Johns, Lucas; Shields, Douglas W.; Hartley, Matthew T.; Kennefick, Daniel; Kennefick, Julia; Seigar, Marc S.; Lacy, Claud H. S. (20 June 2014). "The black hole mass function derived from local spiral galaxies".The Astrophysical Journal.789 (2): 124.arXiv:1405.5876.Bibcode:2014ApJ...789..124D.doi:10.1088/0004-637X/789/2/124.S2CID119302157.
^NASA, ESA, J. DePasquale (STScI), M. Kornmesser and M. Zamani (ESA/Hubble), A. Riess (STScI/JHU) and the SH0ES team, and the Digitized Sky Survey (6 October 2020)."Check out this exploding supernova captured by the Hubble telescope".CBBC Newsround.Supernova SN 2018gv{{cite web}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
