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Kepler-289 e
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Exoplanet Kepler-289 e

Exoplanet Kepler-289 e orbits star Kepler-289 that lies 2370 light years away from the Sun. It weighs about 17.39 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
2370 light years
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iconKepler-289 e

Exoplanet
icon time Orbit around star: 330.0716 days +
Orbital period
Orbital period of exoplanet Kepler-289 e around its star is 330.0716 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... icon More about Orbital period in StellarGuide

Basic characteristic

icon weight
Mass: 17.39 M Earth
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Exoplanet mass
Exoplanet Kepler-289 e has 17.39 Earth masses, or 1.01 times the mass of Neptune.

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... icon More about Exoplanet mass in StellarGuide
icon discoveryYear of discovery: 2025 (transit)
Other designations of this exoplanet
PH3 e, 2MASS J19495168+4252582 e, KIC 7303287 e, KOI-1353 e, WISE J194951.68+425258.2 e
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Kepler-289 system structure

Exoplanet Kepler-289 e orbits star Kepler-289, which has bigger mass than Sun. It is one of 4 known exoplanets orbiting this star.
 Kepler-289
Kepler-289 e n/a 17.4 M⊕ 330.1 days
Kepler-289 b 0.21 AU 7.3 M⊕ 2.2 R⊕ 34.5 days
Kepler-289 d 0.33 AU 4.1 M⊕ 2.7 R⊕ 66.1 days
Kepler-289 c 0.51 AU 133.5 M⊕ 11.6 R⊕ 125.9 days

Comparison

When comparing to the Solar system planets, Kepler-289 e has 1.01 times the mass of Neptune
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
icon mass Mass 316.1821.3417.39158.090.050.181.191.01

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