Upsilon-1 Cephei (HIP 102431), a yellow main-sequence star in Stars

Upsilon-1 Cephei (HIP 102431) is a yellow main-sequence star (G0IVb) in Stars, 88 light years from Earth at magnitude 4.52.

Ashland Astronomy Studio October 3, 2026 Star

Upsilon-1 Cephei (HIP 102431)

Upsilon-1 Cephei is a yellow main-sequence star in the constellation Stars. At 88 light years away, it shines at an apparent visual magnitude of 4.52. Iron abundance: 0.13 (135% of the Sun). Galactic velocity: 45.3 km/s. Galactic orbit: 17,231 27,635 light years from galactic center.

Sky position: RA 20h 45m, Dec +57° 34.8'

Spectral type: G0IVb

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