Sigma Tauri

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σ Tauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension 04h 39m 09.2s
Declination +15° 47' 59"
Apparent magnitude (V) 5.08 + 4.67
Distance 155 ± 5 ly
(48 ± 1 pc)
Spectral type A4m+A5Vn
Other designations
91 Tauri + 92 Tauri, HR 1478 + HR 1479, HD 29479 + HD 29488, BD+15 665 + BD+15 666, HIP 21673 + HIP 21683, SAO 94051 + SAO 94054, GC 5662 + GC 5666,
BDS 2293, CCDM 04392+1552.

Sigma Tauri (σ Tau / σ Tauri) is a star system in the constellation Taurus and a member of the Hyades star cluster. It is approximately 155 light years from Earth.

The system is a visual double star, whose components are designated σ¹ Tauri and σ² Tauri.. They are separated by 7.3 arcminutes on the sky. Both stars are white A-type main sequence dwarfs and have apparent magnitudes of +5.08 and +4.67, respectively.

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