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Ross 128
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Ross 128 b
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Exoplanet Ross 128 b

Exoplanet Ross 128 b orbits star Ross 128 that lies 11 light years away from the Sun. It weighs about 1.4 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
11 light years

Ross 128 b

Exoplanet, super-earth
Star: Ross 128
icon distanceDistance from the star: 0.05 AU
icon timeOrbit around star: 9.8596 days

Basic characteristic

icon weightMass: 1.4 M Earth
icon radiusSize: 1.2 R Earth | 0.1 R Jupiter
icon densityDensity: 4464 kg/m3 | 81 % Earth
icon temperatureTemperature: 260 K | -13 °C
icon discoveryYear of discovery: 2017 (radial velocity)
Comparison to the Solar system planets
icon massMass: Earth (140 % Earth mass)
icon radiusSize: Earth (120 % Earth radius)
icon massDensity: Mars (114 % Mars density)
icon distanceDistance: Mercury (13 % Mercury distance)
Other designations of this exoplanet
FI Virginis b, FI Vir b, G 010-050 b, GCTP 2730 b, GJ 447 b, Gliese 447 b, HIC 57548 b, HIP 57548 b, LHS 315 b, Vyssotsky 286 b, LTT 13240 b, LFT 852 b, LSPM PM I11477+0048 b
Exoplanets around star Ross 128
Exoplanet Ross 128 b orbits star Class red dwarf Ross 128, which has much lower mass than Sun. It is the only known exoplanet orbiting this star
Ross 128 b
| 0.05 AU
Star Ross 128
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