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Curiosity Landing

HEC: Exoplanet Statistics

Last Update: September 1, 2014

Currently Known Exoplanets
Here is a list on the number of confirmed and unconfirmed exoplanets according to the main exoplanet databases. Not all of them list the same number of objects or data depending on their criteria and scope. The PHL' Exoplanets Catalog uses the Extrasolar Planet Encyclopedia with many corrections and additions from other sources.

Exoplanet DatabaseConfirmedNASA Kepler Candidates*
PHL Exoplanets Catalog1,8264,229
Extrasolar Planet Encyclopaedia1,821
NASA Exoplanet Archive1,7434,229
Exoplanet Orbit Database1,5164,250
Open Exoplanet Catalogue1,786
* Most Kepler candidates are unconfirmed

Summary Statistics


This page has statistics for all known exoplanets from the PHL's Exoplanet Database, which includes both confirmed exoplanets and NASA Kepler candidates. The current number of potentially habitable exoplanets and predicted exomoons are shown in red. Some of these numbers are also represented in the Periodic Table of Exoplanets.


 Total
Exoplanets
Stellar
Systems
Hot ExoplanetsWarm ExoplanetsCold
Exoplanets
Unclassified
Habitable
Exoplanets3
Habitable
Exomoons4
 Confirmed11,8161,1251,453137213132128
Kepler Candidates24,2293,2514,0002151409923

(1) Confirmed exoplanets are those mostly listed by the Extrasolar Planets Encyclopedia plus any recent changes/updates.
(2) NASA Kepler Mission exoplanet candidates are those as listed by the NASA Exoplanet Archive.
(3) Number of potentially habitable exoplanets includes some still unconfirmed.
(4) Objects of interest for habitable exomoons are predicted from planetary dynamics, but none observed yet.


Mercurians
Subterrans
Terrans
Superterrans
Neptunians
Jovians
315108531363806
0.2 %0.8 %5.9 %29.1 %19.9 %44.1 %


Hot Mercurians
Hot Subterrans
Hot Terrans
Hot Superterrans
Hot Neptunians
Hot Jovians
315106504333498
 Warm Mercurians
 Warm Subterrans
Warm Terrans
Warm Superterrans
Warm Neptunians
Warm Jovians
0012012105
Cold MercuriansCold SubterransCold TerransCold SuperterransCold NeptuniansCold Jovians
001717190


1-Planet
Systems
2-Planet
Systems
3-Planet
Systems
4-Planet
Systems
5-Planet
Systems
6-Planet
Systems

7-Planet
Systems
668315100331341
58.9 %27.8 %8.8 %2.9 %1.1 %0.4 %
0.1 %


Details of NASA Kepler Candidates

Mercurians
Subterrans
Terrans
Superterrans
Neptunians
Jovians
41496091,9441,015502
0.1 %3.5 %14.4 %46.0 %24.0 %11.9 %


Hot Mercurians
Hot Subterrans
Hot Terrans
Hot Superterrans
Hot Neptunians
Hot Jovians
41485991,847939457
 Warm Mercurians
 Warm Subterrans
Warm Terrans
Warm Superterrans
Warm Neptunians
Warm Jovians
017917244
Cold MercuriansCold SubterransCold TerransCold SuperterransCold NeptuniansCold Jovians
003641


1-Planet Systems
2-Planet Systems
3-Planet Systems
4-Planet Systems
5-Planet Systems6-Planet Systems
2,59843014754184
79.8 %13.2 %4.5 %1.7 %0.6 %0.1 %


† Not all exoplanets listed in the summary can be assigned to a category due to missing stellar or planetary data.