NGC 2525

Source: Wikipedia, the free encyclopedia.
71 Mly (21.9 Mpc)[2]
Apparent magnitude (V)11.6 [3]
Characteristics
TypeSB(s)c [1]
Apparent size (V)2.9′ × 1.9′ [1]
Other designations
UGCA 135, MCG -02-21-004, PGC 22721[1]

NGC 2525 is a

light years from Earth, which, given its apparent dimensions, means that NGC 2525 is about 60,000 light years across. It was discovered by William Herschel on February 23, 1791.[4]

The galaxy has a bar and two main

HII regions are observed in the arms. The brightest stars of the galaxy have apparent magnitude around 22. Its nucleus is small and bright.[5] In the centre of the galaxy is predicted to lie a supermassive black hole whose age is estimated to be between 1.1 and 44 million years, based on the spiral arm pitch angle.[6][7]

SN 2018gv

Light curve for SN 2018gv

One supernova has been observed in NGC 2525, SN 2018gv. It was discovered on 15 January 2018 at magnitude 16.5,[8] and it was identified spectrographically as a type Ia supernova 10 to 15 days before maximum.[9] The supernova was also observed by ATLAS on 2018 January 14.5 UT at magnitude 18.1.[10] It reached a peak magnitude of 12.8. A video of the supernova was released.[11][12]


References

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 2525. Retrieved 2016-01-18.
  2. S2CID 14251529
    .
  3. ^ "Revised NGC Data for NGC 2525". spider.seds.org. Retrieved 25 November 2018.
  4. ^ Seligman, Courtney. "NGC 2525". Celestial Atlas. Retrieved 19 November 2018.
  5. ^ Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
  6. S2CID 119302157
    .
  7. doi:10.1111/j.1365-2966.2012.21118.x
    .
  8. ^ "SN 2018gv". Transient Name Server. wis-tns.weizmann.ac.il.
  9. ^ "ATel #11175: Spectroscopic Classification of SN 2018gv with Keck I/LRIS". ATel. 16 January 2018.
  10. ^ "ATel #11177: ePESSTO spectroscopic classification of optical transients: SN2018gv a very young SN Ia". ATel. 16 January 2018.
  11. ^ "Time-Lapse of Supernova in NGC 2525", European Space Agency, retrieved 2021-11-05
  12. ^ 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)

External links

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