stars
exoplanets
news
Exoplanet LSPM J2122+2255 b
Exoplanet LSPM J2122+2255 b orbits star LSPM J2122+2255 that lies 51 light years away from the Sun.
It weighs about 108.088 Earth masses and orbits its star further than Earth orbits Sun.
Sun distance
51 light years
51 light years
Loading may take a moment.
LSPM J2122+2255 b
Exoplanet
Star: LSPM J2122+2255
Distance from the star: 1.22 AU
Orbit around star: 694.86 days
+
Orbital period
Orbital period of exoplanet LSPM J2122+2255 b around its star is 694.86 days (or 1.9 years).
The orbital period of an exoplanet is the time it takes to complete one full orbit around its star, usually measured in days. Most of the exoplanets discovered so far have orbital periods of less than one year...
More about Orbital period in StellarGuide
Eccentricity: 0.05Basic characteristic
Mass: 108.088 M Earth
| 0.3401 M Jupiter
Exoplanet mass
Exoplanet LSPM J2122+2255 b has 108.088 Earth masses (or 0.3401 Jupiter masses).
The mass of an exoplanet is one of the most important characteristics for understanding what kind of world it is — whether it’s small and rocky like Earth or large and gaseous like Jupiter. Mass provides key information about the planet’s composition, gravity, and formation history...
More about Exoplanet mass in StellarGuide
Year of discovery: 2022 (radial velocity)
Other designations of this exoplanet
TYC 2187-512-1 b, Karmn J21221+229 b
TYC 2187-512-1 b, Karmn J21221+229 b
Advertisement
LSPM J2122+2255 system structure
Exoplanet LSPM J2122+2255 b orbits star LSPM J2122+2255, which has lower mass than Sun. It is the only known exoplanet orbiting this star
|
|
LSPM J2122+2255 | ||||||||
| LSPM J2122+2255 b | 1.22 AU | 108.1 M⊕ | 694.9 days | ||||||
Comparison
When comparing to the Solar system planets, LSPM J2122+2255 b has 1.14 times the mass of Saturn and it orbits its star a little closer than Mars.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 1965.24 | 132.62 | 108.09 | 982.62 | 0.34 | 1.14 | 7.4 | 6.28 |
|
Distance | 3.13 | 1.69 | 1.22 | 0.8 | 0.23 | 0.13 | 0.06 | 0.04 |
Habitability
Habitable zone of the star: 0.22 - 0.32 AU
The planet is too cold to sustain liquid water on its surface. It is however possible that there is environment with higher temperatures on some of its potential moons.
The planet is probably a gas giant and has no surface, however life could still be possible on the potential moons orbiting it.