NGC 4274

Source: Wikipedia, the free encyclopedia.
45 ± 15 Mly (13.9 ± 4.6 Mpc)[1]
Apparent magnitude (V)10.4[2]
Characteristics
Type(R)SB(r)ab [1]
Apparent size (V)6.8′ × 2.5′[1]
Other designations
UGC 7377, MCG +05-29-060, PGC 39724[1]

NGC 4274 is a

light years from Earth, which, given its apparent dimensions, means that NGC 4274 is about 95,000 light years across. It was discovered by William Herschel
in 1785.

Characteristics

NGC 4274 is characterised by its overlapping outer arms, forming a

bulge and they are bright and dusty, with dust lanes that are more prominent at the near side. Outside the near-ring a set of fainter outer arms has been detected.[3] These outer arms also form a ring, with diameter 5.9′. A third rings exists near the nucleus.[4] The nuclear ring has semimajor axis 9", which corresponds to 680 parsec at that distance.[5]

The bar of the galaxy is 5 kpc long.[5] The galaxy features a nuclear bar that is almost perpendicular to the outer bar.[6][7]

Supernova

One supernova has been observed in NGC 4274: SN 1999ev. It was a type II supernova, discovered by Tom Boles on 7 November 1999. It peaked at magnitude 15.2.[8]

Nearby galaxies

NGC 4274 is the foremost member of a galaxy group known as NGC 4274 group. Other members of the group are NGC 4173, NGC 4245, NGC 4251, NGC 4283, IC 3215, NGC 4310, and NGC 4314.[9] It is part of the Coma I Group which is part of the Virgo Supercluster.[10]

Gallery

  • NGC 4274 (HST)
    NGC 4274 (HST)
  • NGC 4274 (SDSS DR14)
    NGC 4274 (SDSS DR14)

References

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 4274. Retrieved 2016-01-18.
  2. ^ "NGC 4274". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-19.
  3. Carnegie Institution of Washington
    .
  4. S2CID 119295831
    . Retrieved 19 July 2017.
  5. ^
    S2CID 18376628
    .
  6. S2CID 9588925
    .
  7. S2CID 12717503
    .
  8. ^ "Supernova 1999ev in NGC 4274". www.rochesterastronomy.org. Retrieved 19 July 2017.
  9. S2CID 119194025. Archived from the original
    on 31 January 2016. Retrieved 19 July 2017.
  10. ISSN 0004-637X
    .

External links

Wikimedia Commons has media related to NGC 4274.


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