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NGC 2865 displays chaotic shell features that are likely the result of an interaction. These shells provide ~11–22% of the galaxy's total luminosity and are generally more blue (younger) than the main galaxy. There is a loop to the northwest and a tail to the southeast of the galaxy, with both being typical of galaxy merger events. Seven HII regions have been identified in the tidal tails, with associated populations of young stars. A ring of neutral hydrogen surrounds the galaxy.
Although there are no nearby galaxies of comparable luminosity, there are a pair of fainter gas-rich galaxies in the vicinity. These lie at angular separations of 6 arcminutes and 9 arcminutes, corresponding to projected separations of 1.0 kpc and 1.5 kpc.
One supernova, SN 2016gwl (type Ia, mag. 15.9), was discovered in NGC 2865 on 2 October, 2016.
HST image of NGC 2865![[REDACTED]](https://abc.global.ssl.fastly.net/File:Commons-logo.svg){kind=link}