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Almanac >
Stars
Gemma
Gemma (also known as Alpha Coronae Borealis) is a star in the constellation Corona Borealis. It located at Right Ascension 15h 34.688m and Declination 26° 42.883'.
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Gemma |
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Fact Sheet
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Identity |
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Alpha Coronae Borealis
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Constellation |
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Corona Borealis
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SAO Catalog Number |
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83893
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HD Catalog Number |
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139006
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FK5 Catalog Number |
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578
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Magnitude |
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2.23
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Spectral Class |
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A0V+G5V
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Location |
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15h 34.688m (Right Ascension)
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26° 42.883' (Declination)
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Proper Motion |
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0.121 (Right Ascension)
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-0.089 (Declination)
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