Sigma-2 Tauri (HIP 21683), a white main-sequence star in Stars

Sigma-2 Tauri (HIP 21683) is a white main-sequence star (A6V) in Stars, 156 light years from Earth at magnitude 4.67.

Ashland Astronomy Studio October 3, 2026 Star

Sigma-2 Tauri (HIP 21683)

Sigma-2 Tauri is a white main-sequence star in the constellation Stars. At 156 light years away, it shines at an apparent visual magnitude of 4.67. Iron abundance: 0.10 (126% of the Sun). Galactic velocity: 45.3 km/s. Galactic orbit: 21,151 27,694 light years from galactic center.

Sky position: RA 4h 39m, Dec +15° 55.1'

Spectral type: A6V

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