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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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HAT-P-3 · ExoAtlas

HAT-P-3

Star 439 light-years from the Sun with one known planet

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Planet

HAT-P-3 bGas giant, scorching

Star

Spectral type: K1
Temperature: 5,185 K
Radius: 0.87 × Sun
Mass: 1.06 × Sun
Brightness seen from Earth: 11.9 mag
Distance: 439 ly (135 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: 206.0940°
Declination: 48.0286°
Catalogue names: Gaia DR3 1510191594552968832