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NGC 4874: Difference between revisions

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==Supernovae==
==Supernovae==
Two [[supernova]]e have been observed in NGC 4874:
Three [[supernova]]e have been observed in NGC 4874:
* SN 1968B (type unknown, mag. 17.4) was discovered by [[Fritz Zwicky]] on 3 February 1968.<ref>{{cite web
* SN 1968B (type unknown, mag. 17.4) was discovered by [[Fritz Zwicky]] on 3 February 1968.<ref>{{cite web
| url = http://www.cbat.eps.harvard.edu/IAUCs/IAUC2056.jpg
| url = http://www.cbat.eps.harvard.edu/IAUCs/IAUC2056.jpg
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}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1968B | url=https://www.wis-tns.org/object/1968B | publisher = [[International_Astronomical_Union|IAU]] | access-date=2 December 2024}}</ref>
}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1968B | url=https://www.wis-tns.org/object/1968B | publisher = [[International_Astronomical_Union|IAU]] | access-date=2 December 2024}}</ref>
* SN 1981G ([[type Ia supernova|type&nbsp;Ia]], mag. 15) was discovered by [[List_of_minor_planet_discoverers#M._Lovas|Miklos Lovas]] on 2 June 1981.<ref>{{cite journal | bibcode=1981IAUC.3610....1S| title=Supernovae| last1=Szeidl| first1=B.| last2=Lovas| first2=M.| last3=Torres| first3=C.| last4=Gonzalez| first4=E.| journal=International Astronomical Union Circular| date=1981| issue=3610| page=1}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1981G | url=https://www.wis-tns.org/object/1981G | publisher = [[International_Astronomical_Union|IAU]] | access-date=2 December 2024}}</ref>
* SN 1981G ([[type Ia supernova|type&nbsp;Ia]], mag. 15) was discovered by [[List_of_minor_planet_discoverers#M._Lovas|Miklos Lovas]] on 2 June 1981.<ref>{{cite journal | bibcode=1981IAUC.3610....1S| title=Supernovae| last1=Szeidl| first1=B.| last2=Lovas| first2=M.| last3=Torres| first3=C.| last4=Gonzalez| first4=E.| journal=International Astronomical Union Circular| date=1981| issue=3610| page=1}}</ref><ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}1981G | url=https://www.wis-tns.org/object/1981G | publisher = [[International_Astronomical_Union|IAU]] | access-date=2 December 2024}}</ref>
* SN 2025ilo ([[Type Ib and Ic supernovae|type{{nbsp}}Ib]], mag. 20.6) was discovered by A. Horti-David, K. Sarneczky, and J. Vinko on 26 April 2025.<ref>{{cite web | website=Transient Name Server | title=SN{{nbsp}}2025ilo | url=https://www.wis-tns.org/object/2025ilo | publisher = [[International Astronomical Union|IAU]] | access-date=3 May 2025}}</ref>


==See also==
==See also==

Latest revision as of 22:51, 3 May 2025

NGC 4874 is a supergiant elliptical galaxy. It was discovered by the British astronomer Frederick William Herschel I in 1785, who catalogued it as a bright patch of nebulous feature. The second-brightest galaxy within the northern Coma Cluster, it is located at a distance of 109 megaparsecs (350,000,000 light-years) from Earth.

Characteristics

The galaxy is surrounded by an immense stellar halo that extends up to one million light-years in diameter. It is also enveloped by a huge cloud of interstellar medium that is currently being heated by action of infalling material from its central supermassive black hole. A jet of highly energetic plasma extends out to 1,700 light-years from its center. The galaxy has 18,700 ± 2,260 globular clusters.

Supernovae

Three supernovae have been observed in NGC 4874:

  • SN 1968B (type unknown, mag. 17.4) was discovered by Fritz Zwicky on 3 February 1968.[5][6]
  • SN 1981G (type Ia, mag. 15) was discovered by Miklos Lovas on 2 June 1981.[7][8]
  • SN 2025ilo (type Ib, mag. 20.6) was discovered by A. Horti-David, K. Sarneczky, and J. Vinko on 26 April 2025.[9]

See also

References

  1. ^ a b "SIMBAD basic query result". SIMBAD Astronomical Database. Retrieved 20 September 2011.
  2. ^ a b c d "NASA/IPAC Extragalactic Database". Results for NGC 4889. Retrieved 2015-01-04.
  3. ^ Michard, R.; Andreon, S. (2008). "Morphology of galaxies in the Coma cluster region down to M_B = -14.25. I. A catalog of 473 members". Astronomy and Astrophysics. 490 (3): 923. arXiv:0809.2487. Bibcode:2008A&A...490..923M. doi:10.1051/0004-6361:200810283. S2CID 16930860.
  4. ^ Falco, Emilio E.; Kurtz, Michael J.; Geller, Margaret J.; Huchra, John P.; Peters, James; Berlind, Perry; Mink, Douglas J.; Tokarz, Susan P.; Elwell, Barbara (1999). "The Updated Zwicky Catalog (UZC)". Publications of the Astronomical Society of the Pacific. 111 (758): 438. arXiv:astro-ph/9904265. Bibcode:1999PASP..111..438F. doi:10.1086/316343. S2CID 14298026.
  5. ^ Marsden, Brian G. (28 February 1968). "Circular No. 2056". Central Bureau for Astronomical Telegrams. Smithsonian Astrophysical Observatory. Retrieved 2 December 2024.
  6. ^ "SN 1968B". Transient Name Server. IAU. Retrieved 2 December 2024.
  7. ^ Szeidl, B.; Lovas, M.; Torres, C.; Gonzalez, E. (1981). "Supernovae". International Astronomical Union Circular (3610): 1. Bibcode:1981IAUC.3610....1S.
  8. ^ "SN 1981G". Transient Name Server. IAU. Retrieved 2 December 2024.
  9. ^ "SN 2025ilo". Transient Name Server. IAU. Retrieved 3 May 2025.