stars
exoplanets
news
Exoplanet K2-18 c
Exoplanet K2-18 c orbits star K2-18 that lies 124 light years away from the Sun.
It weighs about 5.62 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
124 light years
124 light years
Loading may take a moment.
K2-18 c
Exoplanet
Star: K2-18
Distance from the star: 0.0670 AU
Orbit around star: 8.962 days
+
Orbital period
Orbital period of exoplanet K2-18 c around its star is 8.962 days.
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: 0.2Basic characteristic
Mass: 5.62 M Earth
Exoplanet mass
Exoplanet K2-18 c has 5.62 Earth masses, or 0.38 times the mass of Uranus.
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
Temperature: 363 K | 89.85 °C
Year of discovery: 2017 (radial velocity)
Other designations of this exoplanet
EPIC 201912552 c, 2MASS J11301450+0735180 c, UCAC4 488-054338 c, TOI 5555 c
EPIC 201912552 c, 2MASS J11301450+0735180 c, UCAC4 488-054338 c, TOI 5555 c
Advertisement
Comparison
When comparing to the Solar system planets, K2-18 c has 38 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 102.18 | 6.9 | 5.62 | 51.09 | 0.02 | 0.06 | 0.38 | 0.33 |
|
Distance | 0.17 | 0.09 | 0.07 | 0.04 | 0.01 | 0.01 | 0 | 0 |
|
Temperature | 0.83 | 0.49 | 1.26 | 1.75 | 2.23 | 2.73 | 4.65 | 5.04 |
Habitability
Habitable zone of the star: 80.3 - 115.6 AU
The planet is too hot to sustain liquid water.
News from this star system
13. 09 2023
Exoplanety|Exoplanets|Exoplanetas|Exoplanètes|Exoplaneten|Экзопланеты
