swap_horiz K2-229b Alternatives
Looking for alternatives to K2-229b? Compare the top Exoplanet options ranked by our AI scoring system.
K2-229b
K2-229b is a hot, dense, Earth-sized exoplanet discovered by the Kepler space telescope in 2018, notable for having an extremely large iron core resembling the planet Mercury.
apps Top K2-229b Alternatives
The top alternative to K2-229b in 2026 is 55 Cancri e with a score of 9.0/10, followed by PSR 1257+12 c (8.8) and Kepler-78b (8.6).
55 Cancri e
55 Cancri e is a rocky exoplanet orbiting a sun-like star approximately 40 light-years away. Its extremely short orbital...
PSR 1257+12 c
PSR 1257+12 c is a rocky exoplanet orbiting the pulsar PSR B1257+12. Its discovery in 1992 alongside other planets aroun...
Kepler-78b
Rocky exoplanet announced in 2013 with a density and composition similar to Earth's, the first exoplanet confirmed to be...
CoRoT-7b
Discovered in 2009 by the French CoRoT space telescope, CoRoT-7b is notable for being the first rocky exoplanet ever fou...
Gliese 581 c
Gliese 581 c is a super-Earth announced in 2007 as an early habitable-zone candidate; later analysis concluded it is lik...
PSR 1257+12 d
Discovered in 1994, PSR B1257+12 d (Phobetor) is a super-Earth exoplanet orbiting the pulsar Lich, notable for being par...
HD 219134 b
A rocky super-Earth exoplanet discovered in 2015, notable for being one of the closest transiting exoplanets to our sola...
Kepler-10b
The first confirmed rocky exoplanet discovered by NASA's Kepler mission, announced in 2011, with a density comparable to...
Kepler-36b
Rocky super-Earth discovered in 2012 sharing an unusually close orbit with the larger Kepler-36c, with the two planets p...
OGLE-2005-BLG-390Lb
Discovered in 2005 using gravitational microlensing, OGLE-2005-BLG-390Lb is a cold super-Earth notable for being one of...
Kepler-10c
A large super-Earth in the Kepler-10 system initially described as a possible rocky mega-Earth with roughly 17 Earth mas...
Kepler-20f
A near-Earth-sized planet in the Kepler-20 system confirmed alongside Kepler-20e in December 2011, with a radius slightl...
Kepler-20e
One of the first Earth-sized exoplanets discovered around a sun-like star, confirmed by NASA's Kepler mission in Decembe...
Gliese 876 d
Discovered in 2005, this ~5.9 Earth-mass super-Earth around red dwarf Gliese 876 was among the first super-Earths confir...
Gliese 581 e
Gliese 581 e is the least massive planet in the Gliese 581 system at ~1.9 Earth masses, announced in 2009; it orbits ver...
GJ 1132 b
GJ 1132 b is a rocky super-Earth orbiting an M-dwarf 39 light-years away, discovered in 2015; follow-up observations sug...
HD 219134 c
A super-Earth exoplanet discovered in 2015, notable for orbiting a nearby K-dwarf star and being part of a multi-planet...
61 Virginis b
The innermost of three planets discovered in 2009 around the sun-like star 61 Virginis, 28 light-years away, with a mini...
HD 3167 b
An ultra-short period super-Earth exoplanet discovered in 2016, notable for orbiting its K-dwarf host star in less than...
K2-3 d
A mini-Neptune exoplanet discovered in 2015, notable for orbiting near the inner edge of the habitable zone of the nearb...
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