List of coolest exoplanets
This is a list of the coolest exoplanets known, specifically those with temperatures lower than. Planets from the Solar System were also included for comparison purposes.
| Image | Name | Temperature | Mass | Method | Notes | References |
| Teq | The coldest known exoplanet, with a temperature lower than the melting points of oxygen and nitrogen. | |||||
| Teq | ||||||
| Teq | One of the oldest exoplanets known, with an age of about 12.7 billion years. | |||||
| Neptune | ||||||
| Uranus | ||||||
| TOI-969 c | Teq | |||||
| MOA-2007-BLG-400Lb | or | Teq | ||||
| WASP-132d | Teq | |||||
| HD 154345 b | Teff | |||||
| HIP 11915 b | Teq | A Jupiter analog. | ||||
| Gliese 777 b | Teff | |||||
| Gliese 414 Ac | Teq | |||||
| HD 191939 f | Teq | |||||
| Saturn | ||||||
| Kepler-167 e | Teq | |||||
| HD 115954 b | Teq | |||||
| HD 118203 c | Teq | |||||
| GJ 1289 b | Teq | |||||
| Epsilon Eridani b ' | Teq | |||||
| HD 164922 b | Teq | |||||
| Teegarden's Star d | Teq | One of the nearest exoplanets. | ||||
| Jupiter | ||||||
| ' | Teq | One of the first exoplanets discovered. | ||||
| HR 5183 b | Teq | A highly-eccentric orbit planet. | ||||
| Teq | ||||||
| TOI-4010 e | Teq | |||||
| HATS-59 c | Teq | |||||
| HD 86226 b | Teq | |||||
| GJ 1002 c | Teq | Orbits within its star's habitable zone. | ||||
| Teq | ||||||
| Kepler-421b | Teq | The transiting exoplanet with the longest orbital period around a single star. | ||||
| HD 192310 c | Teq | |||||
| WD 1856+534 b | Teff | Coldest exoplanet with a measured temperature. | ||||
| Kepler-16b | Teq | |||||
| Kepler-186f | Teq | Potentially habitable | ||||
| TOI-4600 c | Teq | |||||
| Teq | One of the first exoplanets discovered. | |||||
| Gliese 876 b | Teq | |||||
| TRAPPIST-1g | Teq | Potentially habitable | ||||
| HD 217107 c | Teff |
Unconfirmed planets
These exoplanets have not been confirmed.| Image | Name | Temperature | Mass | Notes | References |
| K01174.01 | -248 | Has a size of | |||