20 Puppis (HIP 40259), a yellow supergiant star in Stars

20 Puppis (HIP 40259) is a yellow supergiant star (G4Ib-II) in Stars, 863 light years from Earth at magnitude 4.99.

Ashland Astronomy Studio October 3, 2026 Star

20 Puppis (HIP 40259)

20 Puppis is a yellow supergiant star in the constellation Stars. At 863 light years away, it shines at an apparent visual magnitude of 4.99. Iron abundance: -0.18 (66% of the Sun). Galactic velocity: 23.3 km/s. Galactic orbit: 24,393 26,484 light years from galactic center.

Sky position: RA 8h 13m, Dec -15° 47.3'

Spectral type: G4Ib-II

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