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I have seen many lists of stars with the most luminosity, mass, and temperature, but I have never seen one that is about absolute magnitude. So I'm wondering, which star has the lowest absolute magnitude (in other words, which star is the brightest when a viewer is 10 pc away)?

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    $\begingroup$ In which photometric band? Or are you just asking what is the most luminous star (known)? $\endgroup$ – Rob Jeffries Aug 16 at 22:18
  • $\begingroup$ I assume you're asking about brightness in the visible portion of the spectrum, i.e., ignoring ultraviolet, but you should clarify that in your question. I also assume you've seen this list: en.wikipedia.org/wiki/List_of_most_luminous_stars $\endgroup$ – PM 2Ring Aug 17 at 13:12
  • $\begingroup$ For several decades S Doradus in the Large Magellanic Cloud was listed as the most luminous known star, and it was actually mentioned as the most luminous star in some classic works of science fiction set centuries or millennia in the future. But "science marches on" tvtropes.org/pmwiki/pmwiki.php/main/sciencemarcheson and now "the great and glorious S Doradus" is only number 78 on this list en.wikipedia.org/wiki/List_of_most_luminous_stars if I counted correctly. $\endgroup$ – M. A. Golding Aug 17 at 16:24
  • $\begingroup$ I thought R136a was it, because it has the highest luminosity? $\endgroup$ – fasterthanlight Aug 17 at 17:01

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