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Exoplanet data from the NASA Exoplanet Archive. Images of exoplanets are illustrations computed from the data, not photographs. Maps of the solar system: Solar System Scope. Sky panorama: ESO/S. Brunier. Both under CC BY 4.0, scaled down.

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HD 81817 · ExoAtlas

HD 81817

Star 878 light-years from the Sun with 2 known planets

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Planets

HD 81817 cGas giant, scorching
HD 81817 bGas giant, scorching

Star

Spectral type: K3 III
Temperature: 4,140 K
Radius: 83.8 × Sun
Mass: 4.3 × Sun
Brightness seen from Earth: 4.26 mag
Distance: 878 ly (269 pc)

Brightness is given in magnitudes: the smaller the number, the brighter the star. The faintest stars visible to the naked eye are around 6 mag.

Position

Right ascension: 144.2716°
Declination: 81.3263°
Catalogue names: HD 81817, HIP 47193, Gaia DR3 1144716265942885888