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HD 154840
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HD 154840 b
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Exoplanet HD 154840 b

Exoplanet HD 154840 b orbits star HD 154840 that lies 337 light years away from the Sun. It weighs about 9.6 Earth masses and orbits its star closer than Earth orbits Sun.
Sun distance
337 light years

HD 154840 b

Exoplanet, super-earth
Star: HD 154840
icon distanceDistance from the star: 0.14 AU
icon timeOrbit around star: 18.84094 days
icon timeEccentricity: 0.17

Basic characteristic

icon weightMass: 9.6 M Earth
icon radiusSize: 2.24 R Earth | 0.2 R Jupiter
icon densityDensity: 4709 kg/m3 | 85 % Earth
icon discoveryYear of discovery: 2024 (transit)
Comparison to the Solar system planets
icon massMass: Neptune (56 % Neptune mass)
icon radiusSize: Neptune (58 % Neptune radius)
icon massDensity: Mars (120 % Mars density)
icon distanceDistance: Mercury (36 % Mercury distance)
Other designations of this exoplanet
TOI 1437 b, BD+57 1730 b, TIC 198356533 b
Exoplanets around star HD 154840
Exoplanet HD 154840 b orbits star Class yellow star HD 154840, which has bigger mass than Sun. It is the only known exoplanet orbiting this star
HD 154840 b
| 0.14 AU
Star HD 154840
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