Eta Hydrae (HIP 42799), a blue-white subgiant star in Stars

Eta Hydrae (HIP 42799) is a blue-white subgiant star (B2IV/V) in Stars, 585 light years from Earth at magnitude 4.30.

Ashland Astronomy Studio October 3, 2026 Star

Eta Hydrae (HIP 42799)

Eta Hydrae is a blue-white subgiant star in the constellation Stars. At 585 light years away, it shines at an apparent visual magnitude of 4.30. Iron abundance: 0.01 (102% of the Sun). Galactic velocity: 23.1 km/s. Galactic orbit: 24,481 28,199 light years from galactic center.

Sky position: RA 8h 43m, Dec +3° 23.9'

Spectral type: B2IV/V

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