Kappa Tauri

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κ¹ Tauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension 04h 25m 22.1s
Declination +22° 17' 38"
Apparent magnitude (V) +4.21
Distance 148 ± 4 ly
(46 ± 1 pc)
Spectral type A7IV-V
Other designations
65 Tauri, HR 1387, HD 27934, BD+21 642, HIP 20635, SAO 76601, GC 5350, ADS 3201, CCDM 04254+2215
κ² Tauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension 04h 25m 25.0s
Declination +22° 11' 59"
Apparent magnitude (V) +5.27
Distance 148 ± 4 ly
(46 ± 1 pc)
Spectral type A7V
Other designations
67 Tauri, HR 1388, HD 27946, BD+21 643, HIP 20641, SAO 76602, GC 5351, ADS 3201, CCDM 04254+2215

Kappa Tauri (κ Tau, κ Tauri) is a star system in the constellation Taurus and a member of the Hyades open cluster. It is approximately 153 light years from Earth.

The system is dominated by a visual double star, κ¹ Tauri and κ² Tauri. κ¹ Tauri is a white A-type subgiant with an apparent magnitude of +4.21. κ² Tauri is a white A-type main sequence dwarf with an apparent magnitude of +5.27. They are 5.8 arcminutes, or at least a quarter light year apart.

Between the two bright stars is a binary star made up of two 9th magnitude stars, Kappa Tauri C and Kappa Tauri D, which are 5.3 arcseconds from each other and 183 arcseconds from κ¹ Tau. Two more 12th magnitude companions fill out the star system, Kappa Tauri E, which is 136 arcseconds from κ¹ Tau, and Kappa Tauri F, 340 arcseconds away from κ² Tau.