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Theta2 Tauri, 78 Tauri

Proper NameChamukuy
Bayer DesignationTheta2 Tauri
Flamsteed Number78 Tauri
HR (BSC)1412
Constellation Taurus
Right Ascension4h 28m 40s
Declination+15° 52' 15"
Distance157 light years
48 parsecs
MagnitudeApparent: +3.4
Absolute: +0.1
Spectral ClassA7III White Giant
Optimum VisibilityDecember
NotesThe brightest star in the Hyades cluster, Chamukuy, or Theta2 Tauri, forms an optical double with yellow Theta1 Tauri, separated by just six arcminutes in the sky, but actually by a distance of some four light years. Chamukuy has a much fainter binary companion, and is a pulsating variable of the Delta Scuti type.


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