List of nearest terrestrial Exoplanet candidates - wikipedia List of nearest terrestrial Exoplanet candidates This list of nearest space terrestrial exoplanets candidates contains possible terrestrial ( `` rocky '' ) exoplanets space at a distance of up to 50 light - years from the Solar System, ordered by increasing distance. They may be composed primarily of silicate rocks and / or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun. Contents 1 Exoplanets discovered ( incomplete ) 2 Table 3 Statistics 4 See also 5 References 6 Links Exoplanets discovered ( incomplete ) This list is incomplete, currently containing 33 exoplanets, 11 of which probably lie inside their star 's habitable zone. There are roughly 2,000 stars at a distance of up to 50 light - years from the Solar System ( 64 of them are yellow - orange `` G '' stars like our Sun ). As many as 15 % of them can have Earth - sized planets in the habitable zones. On November 4, 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth - sized planets orbiting in the habitable zones of sun - like stars and red dwarf stars within the Milky Way Galaxy. 11 billion of these estimated planets may be orbiting sun - like stars. The nearest such planet may be as close as 12 light - years away. On August 24, 2016, astronomers announced the discovery of a rocky planet in the habitable zone of Proxima Centauri, the closest star to Earth. Called Proxima b, the planet is 1.3 times the mass of Earth and has an orbital period of roughly 11.2 Earth days. However Proxima Centauri 's classification as a red dwarf casts doubts on the habitability of any exoplanets in its orbit due to low stellar flux, high probability of tidal locking, small circumstellar habitable zones and high stellar variation. Another likely candidate is Alpha Centauri, Earth 's nearest Sun - like star system 4.37 light years away. Estimates place the probability of finding a habitable planet around Alpha Centauri A or B at roughly 85 %. Alpha Centauri is the target of several exoplanet - finding missions, including Breakthrough Starshot and Mission Centaur, the latter of which is chronicled in the 2016 documentary film, `` The Search for Earth Proxima. '' Table Name Image ( artist 's concept ) g ( s ) Proxima Centauri b ≥ 1.27 ~ 1.1 234 K - 39 ° C 0.05 < 0.35 4.22 Wolf 1061b ≥ 1.36 ≥ 1.44 13.8 Wolf 1061c ≥ 4.3 ≥ 1.64 13.8 Wolf 1061d ≥ 5.21 ≥ 2.04 13.8 Gliese 876 d 6.8 650 K 377 ° C 0.021 0.21 15 Gliese 682 b ≥ 2 16 Gliese 832 c ≥ 5.4 295 K 22 ° C 0.162 0.03 16.16 82 G. Eridani b ≥ 2.7 660 K 387 ° C 0.1207 0 19.71 82 G. Eridani c ≥ 2.4 508 K 235 ° C 0.2036 0 19.71 82 G. Eridani d ≥ 4.8 388 K 115 ° C 0.3499 0 19.71 Gliese 581 e ≥ 1.7 0.029 0 20 Gliese 581 c ≥ 5.6 0.072 0 20 Gliese 581 d ≥ 5.6 2.34 1.27 233 K - 41 ° C 0.218 0 20 HD 219134 b 4.5 1.6 700 K 427 ° C 21 Gliese 667C b 6.30 1.44 445 K 172 ° C 0.05 0.09 22 Gliese 667C c 3.8 1.32 302 K 29 ° C 0.13 0.34 22 61 Virginis b ≥ 5.1 0.050 0.12 28 HD 85512 b ≥ 3.6 1.74 1.33 351 K 78 ° C 0.26 0.11 36 GJ 180 b ≥ 2.3 312 K 39 ° C 38 TRAPPIST - 1b 39.5 TRAPPIST - 1c 39.5 TRAPPIST - 1d 39.5 TRAPPIST - 1e 39.5 TRAPPIST - 1f 39.5 TRAPPIST - 1g 39.5 TRAPPIST - 1h 39.5 55 Cancri e ( Janssen ) 8.6 0.016 0.17 40 HD 40307 b ≥ 4.2 0.047 0.2 42 HD 40307 c ≥ 6.8 0.081 0.06 42 HD 40307 d ≥ 9.2 0.134 0.07 42 HD 40307 e ≥ 3.5 0.1886 0.15 42 HD 40307 f ≥ 5.2 385 K 112 ° C 0.247 0.02 42 HD 40307 g ≥ 7.1 284 K 11 ° C 0.600 0.29 42 Note : There is no scientific consensus about terrestrial composition of most of the planets in the list. Sources in the `` Main source '' column confirm the possibility of terrestrial composition. In September 2012, the discovery of two planets orbiting Gliese 163 was announced. One of the planets, Gliese 163 c, about 6.9 times the mass of Earth and somewhat hotter, was considered to be within the habitable zone, but is probably not terrestrial. In May 2016, the finding of three earth - like planets of ultracool dwarf TRAPPIST - 1 has been released. Statistics Distance from the Solar System Distance Lying within the habitable zone All < 10 light - years 0 < 20 light - years 6 15 < 30 light - years 8 22 < 40 light - years 10 24 < 50 light - years 11 31 Note : in most cases the composition of the atmosphere and atmosphere pressure of exoplanets are unknown, so surface temperatures are estimates based on computer models and expert opinions. 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Links Super-Earth Candidates in or near Habitable Zone Exoplanetology Planet Definition IAU Planetary science Main topics Exoplanet Methods of detecting exoplanets Planetary system Sizes and types Terrestrial Carbon planet Coreless planet Desert planet Dwarf planet Ice planet Iron planet Lava planet Mega-Earth Ocean planet Sub-Earth Super-Earth Gaseous Chthonian planet Eccentric Jupiter Gas dwarf Helium planet Hot Jupiter Hot Neptune Ice giant Mini-Neptune Super-Jupiter Other types Brown dwarf Circumbinary planet Double planet Mesoplanet Planemo Planetesimal Protoplanet Pulsar planet Sub-brown dwarf Ultra-cool dwarf Formation and evolution Accretion Merging stars Nebular hypothesis Planetary migration Systems Exocomet Exomoon Interstellar comet Mean - motion resonances Retrograde planet Rogue planet Titius -- Bode laws Trojan planet Host stars Binary star Brown dwarfs Extragalactic planet F / Yellow - white dwarfs G / Yellow dwarfs Herbig Ae / Be K / Orange dwarfs M / Red dwarfs Planets in globular clusters Pulsar Red giant Subdwarf B Subgiant T Tauri White dwarfs Yellow giant Detection Astrometry Direct imaging list Microlensing list Polarimetry Pulsar timing list Radial velocity list Transit method list Transit - timing variation Habitability Astrobiology Circumstellar habitable zone Earth analog Extraterrestrial liquid water Habitability of natural satellites Superhabitable planet Catalogues Catalog of Nearby Habitable Systems Exoplanet Data Explorer Extrasolar Planets Encyclopaedia NASA Exoplanet Archive NASA Star and Exoplanet Database Lists Exoplanetary systems Host stars Multiplanetary systems Stars with proplyds Exoplanets List of exoplanets Discoveries Extremes Firsts Nearest Largest Most massive Terrestrial candidates Kepler Potentially habitable Other Carl Sagan Institute Exoplanet phase curves Nexus for Exoplanet System Science Planets in science fiction Sudarsky 's gas giant classification Discoveries of exoplanets Search projects Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_nearest_terrestrial_exoplanet_candidates&oldid=805183339 '' Categories : Planetary systems Lists of superlatives in astronomy Lists of exoplanets Hidden categories : CS1 maint : Multiple names : authors list CS1 maint : Explicit use of et al. 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Question: what's the closest habitable planet to earth
Answer: Proxima Centauri