NGC 2146 explained

NGC 2146
Epoch:J2000
Constellation Name:Camelopardalis
Type:SB(s)ab pec
Dist Ly:NaNMpc
Z:0.002999
H Radial V:899 ± 1 km/s
Appmag V:11.38
Size V:6′.0 × 3′.4
Size:~38.25kpc (estimated)

NGC 2146 (also known as the Dusty Hand Galaxy[1]) is a barred spiral galaxy type SB(s)ab pec in the constellation Camelopardalis. The galaxy was discovered in 1876 by Friedrich August Theodor Winnecke.[2]

It has a diameter of 80,000 lyr. The galaxy's most conspicuous feature is the dusty lanes of a spiral arm lying across the core of the galaxy as seen from Earth, the arm having been bent 45 degrees by a close encounter with a smaller galaxy possibly NGC 2146a about 0.8 billion years ago. This close encounter is credited with the relatively high rates of star formation that qualify NGC 2146 as a starburst galaxy.

Supernovae

NGC 2146 has been host to three known supernova events:

Notes and References

  1. Book: Stoyan, Ronald. Schurig. Stephan. interstellarum Deep Sky Atlas. Cambridge University Press; Oculum-Verlag GmbH. Erlangen. 2014. 978-1-107-50338-0. 920437579.
  2. Web site: Feeling the strain. The Hubble European Space Agency Information Centre. 22 August 2011. 6 October 2012.
  3. Web site: Transient Name Server . SN2005V . . 14 November 2024.
  4. Mattlla. S. Greimel. R. Meikle. P. LIRIS Discovers Supernovae in Starburst Galaxies. The Newsletter of the Isaac Newton Group of Telescopes. 9. 16. 8 July 2015. 2005INGN....9...16M. 2005.
  5. Web site: Image of supernova 2005V. rochesterastronomy.org. 4 February 2005. 10 March 2018.
  6. Web site: ATEL #11379: Spectroscopic Classification of SN 2018zd as a very young Type IIn Supernova. Jujia. Zhang. Liang. Xu. Xiaofeng. Wang. 6 March 2018. 10 March 2018.
  7. Hiramatsu D, Howell D, Van S et al. 28 June 2021 . The electron-capture origin of supernova 2018zd . Nat Astron . 5 . 9 . 903–910 . 10.1038/s41550-021-01384-2. 2011.02176. 2021NatAs...5..903H . 226246044 .
  8. Web site: New, Third Type Of Supernova Observed . 28 June 2021 . W. M. Keck Observatory.
  9. News: Astronomers discover new type of supernova. . PA. 28 June 2021. 1 July 2021. In 1980, Ken'ichi Nomoto of the University of Tokyo predicted a third type called an electron capture supernova. ... In an electron capture supernova, as the core runs out of fuel, gravity forces electrons in the core into their atomic nuclei, causing the star to collapse in on itself..
  10. Web site: SN 2018zd. Transient Name Server. 2 March 2018. 10 March 2018.
  11. Web site: Transient Name Server . SN2024abfl . . 15 November 2024.

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