30 sites in Stars
Bright Star Catalogue
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Find data (cross references, positions, proper motions, spectral classes, magnitudes ...) on all stars visible to the naked eye from the BSC, SKY2000, SAO, WDS and GCVS. Stars can be searched by their proper names, Bayer designations, Flamsteed, HR, HD, SAO or FK5 numbers.
http://www.alcyone.de/SIT/bsc
Cosmobrain
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Lists the 50 brightest stars visible from Earth, and the 50 closest stars to Earth. Proper names, distances, magnitudes, spectral classification and other data are provided for each star.
http://www.cosmobrain.com/
Star Data Pages
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Provides detailed information about stars: positions, proper motion, radial velocity, magnitudes, spectral class, color index, catalogue references, data about multiple star systems (i.e. orbital elements), and data about variability (min./max. brightness, period, type of variability).
http://www.alcyone.de/SIT/SIT_en.htm
See also
The category Starsin other languages