NGC3318 is a barred spiral galaxy in the constellation of Vela. Its velocity with respect to the cosmic microwave background is , which corresponds to a Hubble distance of . However, 20 non-redshift measurements give a much closer mean distance of . It was discovered by British astronomer John Herschel on 2 March 1835.
NGC 3318 is a Seyfert II 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 3318 group NGC 3318 is part of a galaxy group that bears its name. The NGC 3318 group (also known as LGG 199) has at least 9 galaxies, including NGC 3250, NGC 3250E, NGC 3250B, NGC 3318B, ESO 317-17, ESO 317-19, ESO 317-21, and ESO 317-23.
Supernovae Three supernovae have been observed in NGC 3318: SN2000cl (TypeIIn, mag. 14.8) was discovered by French amateur astronomer Robin Chassagne (bio-fr) on 26 May 2000. SN2017ahn (TypeII, mag. 18.0896) was discovered by the Distance Less Than 40 Mpc Survey (DLT40) on 8 February 2017. SN2020aze (Type II, mag. 17.1224) was discovered by DLT40 on 26 January 2020.
See also List of NGC objects (3001–4000)
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