NGC 3568 is a barred spiral galaxy in the constellation of Centaurus. Its velocity with respect to the cosmic microwave background is 2,764±22 km/s, which corresponds to a Hubble distance of 132.9 ± 9.4 Mly (40.76 ± 2.87 Mpc). However, 25 non-redshift measurements give a much closer mean distance of 81.96 ± 3.65 Mly (25.128 ± 1.119 Mpc). It was discovered by British astronomer John Herschel on 21 April 1835.

NGC 3568 is a Seyfert I galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.

NGC 3557 group

NGC 3568 is a member of the NGC 3557 group (also known as LGG 229) which has at least 11 galaxies, including NGC 3533[fr], NGC 3557, NGC 3557B[d], NGC 3564[fr], and NGC 3573[fr], among others.

Supernova

One supernova has been observed in NGC 3568:

  • SN 2014dw (TypeII, mag. 15.5) was discovered by Stu Parker on 6 November 2014.

See also

External links

  • Media related to NGC 3568 at Wikimedia Commons
  • NGC 3568 on WikiSky: , , , , , , , ,