NGC5042 is an intermediate spiral galaxy in the constellation of Hydra. Its velocity with respect to the cosmic microwave background for is 1,697±22 km/s, which corresponds to a Hubble distance of 81.6 ± 5.8 Mly (25.03 ± 1.78 Mpc). However, 15 non redshift measurements give a much closer distance of 47.88 ± 2.37 Mly (14.680 ± 0.726 Mpc). It was discovered by British astronomer John Herschel on 25 March 1836.

The Hubble Space Telescope's image of NGC5042 shows its collection of H II regions, brilliant pink gas clouds in its spiral arms, getting their color from hydrogen atoms that have been ionized by ultraviolet light. Many of these clouds are associated with groups of blue stars, often appearing to form a shell around them.

Image gallery

See also

External links

  • Media related to NGC 5042 at Wikimedia Commons
  • NGC 5042 on WikiSky: , , , , , , , ,