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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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HR 8799 · ExoFinder

HR 8799

Star 135 light-years from the Sun with 4 known planets

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Planets

HR 8799 eGas giant, scorching
HR 8799 dGas giant, scorching
HR 8799 cGas giant, scorching
HR 8799 bGas giant, scorching

Star

Spectral type: A5 V
Temperature: 7,205 K
Radius: 1.49 × Sun
Mass: 1.5 × Sun
Brightness seen from Earth: 5.98 mag
Distance: 135 ly (41.2 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: 346.8701°
Declination: 21.1340°
Catalogue names: HD 218396, HIP 114189, Gaia DR3 2832463659640297472