I am wondering what the brightest individual star is in M31, the Andromeda Galaxy. Specifically, brightest as seen from Earth (so relative magnitude).

  • $\begingroup$ I assume you're discounting en.wikipedia.org/wiki/SN_1885A a supernova in M31 in the year 1885? $\endgroup$ – user21 Sep 29 '15 at 13:28
  • $\begingroup$ Yes, I am discounting supernovae. I am specifically wondering about stars Gaia could look at (so, ideally will be visible over a 5 year period). $\endgroup$ – NeutronStar Sep 29 '15 at 17:26

The Variable stars that Hubble studied in M31 when he showed that it was a galaxy are among the most luminous. They include Var-A1, a luminous blue variable, and magnitude about 16.5. Var A-1 is one of the most luminous stars known.

Nasa has a catalog of stars in the m31 field, The brightest star in this catalog is an 11.4 magnitude star. But I think that database needs careful interpretation.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.