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VStar is a multi-platform, easy-to-use variable star observation visualisation and analysis tool. Data can be read from a file or the AAVSO database, light curves and phase plots created, period analysis performed, and filters applied. Plugins can be developed, e.g. to make additional observation sources available.
See also:
1. http://www.aavso.org/vstar-overview
2. http://www.aavso.org/forums/about-aavso/vstar
3. http://dbenn.wordpress.com/category/astronomy-science/vstar
4. http://www.citizensky.org/teams/vstar-software-development
