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Asterope

21 Tauri

Blue Star in Taurus

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Proper NameAsterope
Bayer DesignationNone
Flamsteed Number21 Tauri
HR (BSC)1151
HD23432
ConstellationTaurus
Right Ascension3h 46m 50s
Declination+24° 35' 44"
Distance440 light years
135 parsecs
MagnitudeApparent: +5.8 to +0.6
Absolute: +0.4
Spectral ClassB8 Blue Dwarf
Optimum VisibilityNovember / December

The northernmost of the named Pleiades is, like all the members of this cluster, a young and hot blue dwarf star. Asterope's magnitude of +5.8 puts it on the edge of naked eye visibility.

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