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I need computer-readable data about as many stars as possible, with their:

  • distance to the Earth (or Sun),
  • their masses,

and if possible:

  • coordinates,
  • age,
  • brightness
  • distance to the center (Sagittarius-A) of the galaxy.

What is available? Which source of such data would be most recommended?

Dimitre Novatchev
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    The GAIA catalog has most of those (or data they can be computed from), probably not mass or age though. http://cdn.gea.esac.esa.int/Gaia/gdr3/gaia_source/ – Greg Miller Jul 07 '23 at 02:01
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    Related: https://astronomy.stackexchange.com/q/8291/16685 It's difficult to estimate the mass of solitary stars, see https://astronomy.stackexchange.com/q/51407/16685 – PM 2Ring Jul 07 '23 at 02:43
  • Thank you, @GregMiller. I just installed the Gaia Sky app and it is amazing! – Dimitre Novatchev Jul 09 '23 at 02:10

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