swap_horiz HD 40307 b Alternatives
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HD 40307 b
The innermost of three super-Earths discovered in 2008 around K-type star HD 40307, approximately 42 light-years away, with an orbital period of just 4.3 days.
apps Top HD 40307 b Alternatives
The top alternative to HD 40307 b in 2026 is Gliese 876 d with a score of 7.8/10, followed by Gliese 581 e (7.6) and HD 40307 g (7.4).
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...
HD 40307 g
A super-Earth announced in 2012 orbiting HD 40307 within the star's habitable zone, drawing attention as a candidate for...
Gliese 581 b
Gliese 581 b is a hot Neptune-mass planet and the first discovered in the Gliese 581 system, detected by the HARPS spect...
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 10180 b
The innermost candidate in the HD 10180 system, announced in 2010, which contained up to seven confirmed planets around...
HD 10180 c
HD 10180 c is a Neptune-mass exoplanet orbiting HD 10180 about 127 light-years away, announced in 2010 as one of at leas...
61 Virginis c
A super-Earth discovered in 2009 orbiting the solar analog 61 Virginis every 38 days, detected through high-precision ra...
Mu Arae c
Mu Arae c is a hot Neptune exoplanet orbiting the star Mu Arae about 50 light-years away, discovered in 2004 and among t...
YZ Ceti b
YZ Ceti b is the innermost of three rocky planets orbiting nearby red dwarf YZ Ceti (~12 ly), discovered in 2017 via HAR...
HD 219134 d
A mini-Neptune exoplanet discovered in 2015, notable for having a mass similar to Uranus and orbiting the nearby star HD...
Wolf 1061 b
Wolf 1061 b is the innermost of three super-Earths orbiting Wolf 1061 (~14 ly), discovered in 2015 by Robert Wittenmyer'...
HD 219134 e
A massive exoplanet discovered in 2015, notable for being a long-period gas giant in the HD 219134 system, orbiting its...
HD 40307 c
A super-Earth in the HD 40307 system discovered in 2008, orbiting every 9.6 days, and part of one of the first confirmed...
HD 40307 d
The outermost of the three originally detected super-Earths around HD 40307, announced in 2008, completing its orbit eve...
HD 128311 b
HD 128311 b is a gas giant exoplanet orbiting the K-type star HD 128311 about 53 light-years away, discovered in 2002 vi...
HD 128311 c
HD 128311 c is a gas giant exoplanet orbiting the K-type star HD 128311 about 53 light-years away, announced in 2005 and...
HD 192310 b
HD 192310 b is a Neptune-mass exoplanet orbiting the nearby K-type star HD 192310 about 29 light-years away, discovered...
HD 40307 e
One of three additional planets announced in 2012 expanding the HD 40307 system to at least six worlds, all with minimum...
HD 192310 c
HD 192310 c is a Neptune-to-Saturn-mass exoplanet orbiting the nearby K-type star HD 192310 about 29 light-years away, a...
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