Zeta Ophiuchi (HIP 81377), a blue-white main-sequence star in Stars

Zeta Ophiuchi (HIP 81377) is a blue-white main-sequence star (B0.5Ve) in Stars, 366 light years from Earth at magnitude 2.54.

Ashland Astronomy Studio October 3, 2026 Star

Zeta Ophiuchi (HIP 81377)

Zeta Ophiuchi is a blue-white main-sequence star in the constellation Stars. At 366 light years away, it shines at an apparent visual magnitude of 2.54. Iron abundance: -0.09 (81% of the Sun). Galactic velocity: 17.9 km/s. Galactic orbit: 23,793 42,090 light years from galactic center.

Sky position: RA 16h 37m, Dec -10° 34'

Spectral type: B0.5Ve

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