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HD 212729
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HD 212729 b
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Exoplanet HD 212729 b

Exoplanet HD 212729 b orbits star HD 212729 that lies 421 light years away from the Sun. It weighs about 16.9 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
421 light years

HD 212729 b

Exoplanet, super-earth
Star: HD 212729
icon distanceDistance from the star: 0.09103 AU
icon timeOrbit around star: 9.13966 days

Basic characteristic

icon weightMass: 16.9 M Earth
icon radiusSize: 2.87 R Earth | 0.3 R Jupiter
icon densityDensity: 3942 kg/m3 | 72 % Earth
icon temperatureTemperature: 1135 K | 862 °C
icon discoveryYear of discovery: 2023 (transit)
Comparison to the Solar system planets
icon massMass: Neptune (99 % Neptune mass)
icon radiusSize: Neptune (74 % Neptune radius)
icon massDensity: Mars (100 % Mars density)
icon distanceDistance: Mercury (23 % Mercury distance)
Other designations of this exoplanet
TOI-1052 b, 2MASS 22300272-7538476 b
Exoplanets around star HD 212729
Exoplanet HD 212729 b orbits star Class yellow-white star HD 212729, which has bigger mass than Sun. It is one of 2 known exoplanets orbiting this star.
HD 212729 b
| 0.09 AU
HD 212729 c
| 0.23 AU
Star HD 212729
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