swap_horiz Kepler-138d Alternatives
Looking for alternatives to Kepler-138d? Compare the top Exoplanet options ranked by our AI scoring system.
Kepler-138d
Outermost of the three originally confirmed Kepler-138 planets, a super-Earth orbiting its M-dwarf host every ~23.1 days, confirmed in 2015 alongside two inner companions.
apps Top Kepler-138d Alternatives
The top alternative to Kepler-138d in 2026 is Kepler-186f with a score of 9.7/10, followed by Kepler-16b (9.4) and Kepler-452b (9.4).
Kepler-186f
Kepler-186f is an exoplanet approximately Earth-sized orbiting the red dwarf star Kepler-186. It resides within its star...
Kepler-16b
Kepler-16b is a giant exoplanet orbiting two stars. Its notable feature is its circumbinary orbit, meaning it circles bo...
Kepler-452b
Kepler-452b is an exoplanet orbiting a G-type star approximately 1,400 light-years from Earth. It’s notable as a super-E...
Kepler-1649c
Kepler-1649c is an exoplanet roughly Earth-sized orbiting a red dwarf star named Kepler-1649. Its location within its st...
Kepler-442b
Kepler-442b is an exoplanet orbiting a cooler star approximately 1,200 light-years from Earth. Its size and position wit...
Kepler-62f
Kepler-62f is an exoplanet located in the Kepler-62 system. It’s notable as a super-Earth orbiting a red dwarf star with...
Kepler-90i
Kepler-90i is an Earth-sized exoplanet orbiting within the habitable zone of its star, Kepler-90. Its discovery in 2017...
Kepler-62e
Super-Earth announced in 2013 orbiting within the habitable zone of the K-type star Kepler-62; at ~1.61 Earth radii it w...
LHS 1140 b
Discovered in 2017, LHS 1140 b is a super-Earth exoplanet notable for orbiting within the habitable zone of a red dwarf...
CoRoT-7b
Discovered in 2009 by the French CoRoT space telescope, CoRoT-7b is notable for being the first rocky exoplanet ever fou...
Kepler-69c
Super-Earth in the Kepler-69 system announced in 2013, orbiting near the inner edge of its habitable zone and considered...
GJ 1214 b
GJ 1214 b is a mini-Neptune discovered in 2009 orbiting a red dwarf 42 light-years away; it was among the first small ex...
Kepler-47c
Outer planet of the Kepler-47 circumbinary system announced in 2012, notable as the first circumbinary planet found orbi...
Kepler-138c
Super-Earth in the Kepler-138 system confirmed in 2015, orbiting its M-dwarf host every ~13.8 days in near orbital reson...
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-47b
Inner planet of Kepler-47, announced in 2012 as part of the first confirmed transiting circumbinary multi-planet system,...
Kepler-36b
Rocky super-Earth discovered in 2012 sharing an unusually close orbit with the larger Kepler-36c, with the two planets p...
Kepler-296e
Super-Earth confirmed in 2014 orbiting within the habitable zone of Kepler-296, a red dwarf binary system ~1,200 light-y...
Kepler-10c
A large super-Earth in the Kepler-10 system initially described as a possible rocky mega-Earth with roughly 17 Earth mas...
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