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NGC 6221

NGC 6221 (also known as PGC 59175) is a barred spiral galaxy located in the constellation Ara. In de Vaucouleurs' galaxy morphological classification scheme, it is classified as SB(s)bc and was discovered by British astronomer John Herschel on 3 May 1835. NGC 6221 is located at about 69 million light years from Earth.

Galaxy group information

NGC 6221 is part of galaxy group NGC 6221/15, which includes spiral galaxy NGC 6215 and three dwarf galaxies. Interactions between NGC 6221 and NGC 6215 form a of neutral hydrogen gas over a projected distance of 100 kpc; Dwarf 3 of the three dwarf galaxies may have formed from the bridging gas.

Supernovae

Two supernovae have been observed in NGC 6221:

  • SN 1990W (type Ib/Ic, mag. 15) was discovered by Robert Evans on 16 August 1990.
  • SN 2024pxg (type II, mag. 15.1) was discovered by the Distance Less Than 40 Mpc Survey (DLT40) on 23 July 2024.

See also

References

External links