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I am just wondering: is there a potential galactic centre out there that's very close to us? I know that CMDG is irregular, but can it still contain a black hole at the centre?

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  • $\begingroup$ Do you mean a supermassive black hole, or just a regular one? $\endgroup$ – probably_someone May 29 '17 at 4:29
  • $\begingroup$ @probably_someone Well, I'd hope for a supermassive one - so that it can serve as a 'gravitational centre' to the Galaxy - but even if a regular one exists so that it's the centre to the galaxy, that would still answer my question. $\endgroup$ – Max May 29 '17 at 12:22
  • $\begingroup$ I'm under the impression that even the existence of the CMDG is a source of minor controversy. If it exists (as a galaxy) it will be irregular and I'm not sure the word "center" applies here. $\endgroup$ – StephenG May 29 '17 at 13:17
  • $\begingroup$ @StephenG Yes, as I mentioned, I do appreciate that if it ever is a galaxy, it is irregular; however, even such irregular galaxies, I believe, contain smaller groups of star clusters which may all be centred around an older black hole. Of course, that would not technically be a 'galactic centre', but that would still be pretty cool. $\endgroup$ – Max May 29 '17 at 14:44
  • $\begingroup$ Just to note: even supermassive black holes are only small fractions of the mass of a galaxy, even a dwarf galaxy. The bodies within the galaxy orbit, overall, each other - their center of gravity, that is. $\endgroup$ – Asher Oct 15 '17 at 3:01

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