Why Variable Stars Change Magnitudes Periodically

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SUMMARY

Variable stars exhibit periodic changes in brightness due to intrinsic and extrinsic factors. The discussion highlights the importance of resources such as the American Association of Variable Star Observers (AAVSO) and the General Catalogue of Variable Stars (GCVS) for understanding these phenomena. The periodicity in brightness can be attributed to stellar pulsations, eclipses, or other astrophysical processes. For comprehensive details, users are directed to specific links that provide in-depth information on variable star types and classifications.

PREREQUISITES
  • Understanding of stellar astrophysics
  • Familiarity with variable star classifications
  • Knowledge of light curve analysis
  • Basic astronomy terminology
NEXT STEPS
  • Research the different types of variable stars on the AAVSO website
  • Explore the General Catalogue of Variable Stars (GCVS) for detailed classifications
  • Learn about light curve analysis techniques for variable star observation
  • Investigate the astrophysical processes causing brightness changes in variable stars
USEFUL FOR

Astronomy enthusiasts, astrophysicists, and educators seeking to deepen their understanding of variable stars and their periodic brightness changes.

tmwong
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why variable stars have various magnitudes? and y they are changing periodically?
 
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tmwong said:
why variable stars have various magnitudes? and y they are changing periodically?
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
 
Last edited by a moderator:
Another source:
http://outreach.atnf.csiro.au/education/senior/astrophysics/variable_types.html

For all the gory details, GCVS is the place to go:
http://www.sai.msu.su/groups/cluster/gcvs/gcvs/

Footnote: The excellent source turbo-1 gave also includes a GCVS link.
 
Last edited by a moderator:

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