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Home : Science : Astronomy : Stars : Variable Stars
Variable Stars
Variable Stars are stars that change brightness. Their brightness can change from just a fraction (not even noticeable to the naked eye) up to 20 magnitudes. To get an idea of how much a magnitudes is, consider that the difference between brightest star one can see outside at night (in a fairly dark area) and the dimmest is about 6 magnitude. Over 300,000 variable stars are known and have been cataloged.
Sites in Variable Stars
American Association of Variable Star Observers
The largest organization for variable stars: provides professional and amateur collaboration, research, and analysis of variable star observations.
General Catalog of Variable Stars Research Group
Research group working on the GCVS, Sternberg Astronomical Institute, Moscow, Russia. Includes catalogs and publications.
Information Bulletin on Variable Stars
The IBVS is a bulletin of Commissions 27 and 42 of the International Astronomical Union, published by Konkoly Observatory, Budapest, Hungary.
Astronomy On-Line
Collaborative Project aimed at getting new people involved in variable star observing.
Free Virtual Galaxy Project
By Jim Smith's. Purpose is to provide a zero cost, interactive 3D virtual reality system.
Astronomical Society of South Australia
ASSA's variable star group. News, FAQ, charts, and software.
A Ritzian Interpretation of Variable Stars
A study on the nature of the speed of light in space using light curves and spectroscopic observations of variable stars as evidence.
Brigham Young University Variable Star Database
Currently contains 311 stars which have been classified as Delta Scutis or Gamma Doradus in some published source.
The Minima of Algol
An article by Alan MacRobert from Sky and Telescope Magazine about the star Algol (Beta Persei) was the first eclipsing variable star ever discovered.
The Top Twelve Naked-Eye Variable Stars
An article by John Isles from Sky and Telescope Magazine.
Skyandtelescope.com - Variable Stars
Observing variable stars.
The Cepheid Distance Scale: A History
A critical review of the Cepheid distance scale, from its inception, to the Hipparcos mission and beyond. |
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