Hyadum II (HIP 20455), a yellow bright giant star in Stars

Hyadum II (HIP 20455) is a yellow bright giant star (G9.5III CN0.5) in Stars, 155 light years from Earth at magnitude 3.77.

Ashland Astronomy Studio October 3, 2026 Star

Hyadum II (HIP 20455)

Hyadum II is a yellow bright giant star in the constellation Stars. At 155 light years away, it shines at an apparent visual magnitude of 3.77. Iron abundance: 0.11 (129% of the Sun). Galactic velocity: 46.8 km/s. Galactic orbit: 20,535 27,195 light years from galactic center.

Sky position: RA 4h 22m, Dec +17° 32.6'

Spectral type: G9.5III CN0.5

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