Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Variable star

  1. Jun 25, 2005 #1
    why variable stars have various magnitudes? and y they are changing periodically?
  2. jcsd
  3. Jun 25, 2005 #2


    User Avatar
    Gold Member

    It would take all day to answer that question - try here, then Google on "variable star" if you need more information.

    http://www.aavso.org/vstar/types.shtml [Broken]
    Last edited by a moderator: May 2, 2017
  4. Jun 25, 2005 #3


    User Avatar
    Science Advisor
    Gold Member

    Another source:
    http://outreach.atnf.csiro.au/education/senior/astrophysics/variable_types.html [Broken]

    For all the gory details, GCVS is the place to go:

    Footnote: The excellent source turbo-1 gave also includes a GCVS link.
    Last edited by a moderator: May 2, 2017
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook