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 . In addition, 22 non-redshift measurements give a distance of . It was discovered by German-British astronomer William Herschel on 7 December 1785.
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 3395, NGC 3396, , , , , PGC 32631, UGC 5934, and .
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 List of NGC objects (3001–4000)
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