This is a list of the coldest exoplanets known, specifically those with temperatures lower than . Planets from the Solar System were also included for comparison purposes.
Image(or artistic representation)NameAverage 1 Bar Temperature (°C)Mass MethodNotesReferences ()TeqThe coldest known exoplanet, with a temperature lower than the melting points of oxygen and nitrogen. One of the oldest exoplanets known, with an age of about 12.7 billion years.Neptune (For reference)Uranus (For reference)TOI-969 cTeq MOA-2007-BLG-400Lb or WASP-132dHD 154345 bTeffHIP 11915 bTeqA Jupiter analog.Gliese 777 bTeffGliese 414 AcTeqHD 191939 fSaturn (For reference)Kepler-167 eTeqHD 115954 bHD 118203 cGJ 1289 bEpsilon Eridani b (AEgir)HD 164922 bTeegarden's Star dOne of the nearest exoplanets.Jupiter (For reference) () (Phobetor)TeqOne of the first exoplanets discovered.Extrasolar Visions - PSR 1257+12 C HR 5183 bA highly-eccentric orbit planet.TOI-4010 eHATS-59 cHD 86226 bGJ 1002 cOrbits within its star's habitable zone.Kepler-421bThe transiting exoplanet with the longest orbital period around a single star. (704 days)HD 192310 cWD 1856+534 bTeff Coldest exoplanet with a measured temperature.Kepler-16bTeqKepler-186fPotentially habitableTOI-4600 c (Poltergeist)One of the first exoplanets discovered.Extrasolar Visions - PSR 1257+12 B Gliese 876 bTRAPPIST-1gPotentially habitableHD 217107 cTeff
Unconfirmed planets These exoplanets have not been confirmed. Image (Or artistic representation)NameTemperature MassNotesReferencesK01174.01 () Has a size of ()
Notes and references