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List of potentially habitable exoplanets
The following list includes some of the potentially habitable exoplanets discovered so far. It is mostly based on estimates of habitability by the Habitable Worlds Catalog (HWC), and data from the NASA Exoplanet Archive. The HWC is maintained by the Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo.
Surface planetary habitability is thought to require an orbit at the right distance from the host star for liquid surface water to be present, in addition to various geophysical and geodynamical aspects, atmospheric density, radiation type and intensity, and the host star's plasma environment.
This is a list of confirmed exoplanets within the circumstellar habitable zone that are either under 10 Earth masses or smaller than 2.5 Earth radii and thus have a chance of being rocky. Note that inclusion on this list does not guarantee habitability, and in particular the larger planets are more unlikely to have a rocky composition. Earth is included for both comparison and reference, while Venus and Mars are included for reference only.
Note that mass and radius values prefixed with "~" have not been measured, but are estimated from the mass–radius relationship.
This is a list of notable exoplanets within the circumstellar habitable zone that are either under 10 Earth masses or smaller than 2.5 Earth radii and have not yet been confirmed. Earth is included for both comparison and reference, while Venus and Mars are included for reference only.
Some habitable exoplanets detected by radial velocity were considered as stellar artifacts by some studies. These include Gliese 581 d and g, Gliese 667 Ce and f, Gliese 682 b and c, Kapteyn b, Gliese 229 Ac, HD 85512 b and Gliese 832 c.
Several other planets, such as Gliese 180 b, also appear to be examples of planets once considered potentially habitable but later found to be interior to the habitable zone. Similarly, Tau Ceti e , Kepler-69c, Gliese 12b were thought to be likely habitable, but with improved models of the circumstellar habitable zone, PHL does not consider it potentially habitable.[failed verification] Kepler-438b was also initially considered potentially habitable; however, it was later found to be a subject of powerful flares that can strip a planet of its atmosphere, so it is now considered non-habitable.
Kepler-1638b was thought to be a possibly habitable planet with a radius smaller than 2 R🜨 after the validation. However based on the later measurement of host star parallax by Gaia, the radius of the planet was revised upward to 3.226+0.201
−0.315 R🜨, meaning it is more likely an ice giant like Neptune with poor prospect for habitability. Similarly, K2-18b, K2-3d and some other habitable exoplanets were considered as Mini-Neptune and Sub-Neptune exoplanets by some studies.
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List of potentially habitable exoplanets AI simulator
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List of potentially habitable exoplanets
The following list includes some of the potentially habitable exoplanets discovered so far. It is mostly based on estimates of habitability by the Habitable Worlds Catalog (HWC), and data from the NASA Exoplanet Archive. The HWC is maintained by the Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo.
Surface planetary habitability is thought to require an orbit at the right distance from the host star for liquid surface water to be present, in addition to various geophysical and geodynamical aspects, atmospheric density, radiation type and intensity, and the host star's plasma environment.
This is a list of confirmed exoplanets within the circumstellar habitable zone that are either under 10 Earth masses or smaller than 2.5 Earth radii and thus have a chance of being rocky. Note that inclusion on this list does not guarantee habitability, and in particular the larger planets are more unlikely to have a rocky composition. Earth is included for both comparison and reference, while Venus and Mars are included for reference only.
Note that mass and radius values prefixed with "~" have not been measured, but are estimated from the mass–radius relationship.
This is a list of notable exoplanets within the circumstellar habitable zone that are either under 10 Earth masses or smaller than 2.5 Earth radii and have not yet been confirmed. Earth is included for both comparison and reference, while Venus and Mars are included for reference only.
Some habitable exoplanets detected by radial velocity were considered as stellar artifacts by some studies. These include Gliese 581 d and g, Gliese 667 Ce and f, Gliese 682 b and c, Kapteyn b, Gliese 229 Ac, HD 85512 b and Gliese 832 c.
Several other planets, such as Gliese 180 b, also appear to be examples of planets once considered potentially habitable but later found to be interior to the habitable zone. Similarly, Tau Ceti e , Kepler-69c, Gliese 12b were thought to be likely habitable, but with improved models of the circumstellar habitable zone, PHL does not consider it potentially habitable.[failed verification] Kepler-438b was also initially considered potentially habitable; however, it was later found to be a subject of powerful flares that can strip a planet of its atmosphere, so it is now considered non-habitable.
Kepler-1638b was thought to be a possibly habitable planet with a radius smaller than 2 R🜨 after the validation. However based on the later measurement of host star parallax by Gaia, the radius of the planet was revised upward to 3.226+0.201
−0.315 R🜨, meaning it is more likely an ice giant like Neptune with poor prospect for habitability. Similarly, K2-18b, K2-3d and some other habitable exoplanets were considered as Mini-Neptune and Sub-Neptune exoplanets by some studies.