NGC 3430 is a barred spiral galaxy in the constellation of Leo Minor. Its velocity with respect to the cosmic microwave background is 1,869 ± 20km/s, which corresponds to a Hubble distance of 89.9±6.4Mly(27.57±1.95Mpc). In addition, 22 non-redshift measurements give a distance of 85.97±3.77Mly (26.359±1.157Mpc). It was discovered by German-British astronomer William Herschel on 7 December 1785.

NGC 3430 and NGC 3424 imaged by SDSS

NGC 3430 is classified as a well-known example of an SAc spiral galaxy with no central bar structure but has spiral arms found open and clear-defined. Moreover, it is also a Wolf-Rayet galaxy, with star-forming regions and forms a pair with NGC 3424, a nearby starburst galaxy. According to a 1997 study presented by researchers, these galaxies are clearly showing signs of tidal interaction.

NGC 3396 Group

NGC 3430 is a member of the NGC 3396 group (also known as LGG 218), which includes at least 11 galaxies: NGC 3381[fr], NGC 3395, NGC 3396, NGC 3424[fr], NGC 3442[fr], IC 2604[de], UGC 5898[d], PGC 32631, UGC 5934, and UGC 5990[d].

Supernovae

Two supernovae have been observed in NGC3936:

  • SN2004ez (TypeII, mag.17.3) was discovered by Kōichi Itagaki on 15 October 2004.
  • PSNJ10520833+3256394 (TypeIIb, mag.17.8) was discovered by Kōichi Itagaki on 27 August 2015.

See also

External links

  • Media related toNGC 3430at Wikimedia Commons
  • NGC 3430 on WikiSky: , , , , , , , ,