In 2007, a rareWO star was discovered in NGC 1313,[8] currently known by its only designation of [HC2007] 31. It is of spectral type WO3.[8] The derived absolute magnitude is about -5,[8] which is very high for a single WO star. (WOs usually have absolute magnitudes of about -1 to -4) This means that the WO is likely part of a binary or a small stellar association.[8]
SN 1978K (type IIn, mag. 16) was discovered by Stuart Ryder in January 1990 and originally reported as a nova.[11] However, a search of archival photographs revealed an outburst on 31 July 1978, and all data indicated that it was a very unusual type II supernova.[12]
NGC 1313 has a strikingly uneven shape and its axis of rotation is not exactly in its centre.[13] NGC 1313 also shows strongstarburst activity[14] and associatedsupershells.[15] NGC 1313 is dominated by scattered patches of intense star formation, which gives the galaxy a rather ragged appearance.[16] The uneven shape, the ragged appearance and the strong starburst can all be explained by agalactic collision in the past.[17] However, NGC 1313 seems to be an isolated galaxy and has no direct neighbours. Therefore, it is not clear whether it has swallowed a small companion in its past.[2]
^Materne, J. (April 1979). "The structure of nearby groups of galaxies - Quantitative membership probabilities".Astronomy and Astrophysics.74 (2):235–243.Bibcode:1979A&A....74..235M.
Media related toNGC 1313 at Wikimedia Commons
