Interesting topic Glen, raises an almost philosophical question. Should objects in the heavens be named after the discoverers or should I say, the first! person to observe them or just be referred to by their catalogue number.
Does create a few problems with the Messier and Caldwell catalogues or others though. If "we" are calling catalogues after the compilers of said catalogues then giving individual objects common names is no different.
But, dare I say that the object in question has been known as M83 for a few centuries now and most of us, on hearing the moniker, know precisely what object is being referred to.
Personally I like the proposal but it would be a long process to get another moniker to be accepted.
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