HEC: Exoplanet Statistics

Last Update: December 15, 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 Catalog1,8604,183
Extrasolar Planet Encyclopaedia1,854
NASA Exoplanet Archive1,7804,183
Exoplanet Orbit Database1,5164,198
Open Exoplanet Catalogue1,826
* 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
 Confirmed11,8601,1621,486142219132230
Kepler Candidates24,1833,1993,897223214210232

(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.


Miniterrans
Subterrans
Terrans
Superterrans
Neptunians
Jovians
315242399365834
0.2 %0.8 %13.0 %21.5 %19.6 %44.8 %


Hot Miniterrans
Hot Subterrans
Hot Terrans
Hot Superterrans
Hot Neptunians
Hot Jovians
315232379333522
 Warm Miniterrans Warm Subterrans
Warm Terrans
Warm Superterrans
Warm Neptunians
Warm Jovians
0071513107
Cold MiniterransCold SubterransCold TerransCold SuperterransCold NeptuniansCold Jovians
003518193


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

7-Planet
Systems
691319101331341
59.4 %27.5 %8.7 %2.8 %1.1 %0.3 %
0.1 %


Details of NASA Kepler Candidates

Miniterrans
Subterrans
Terrans
Superterrans
Neptunians
Jovians
61701,0791,377928505
0.1 %4.1 %25.8 %32.9 %22.2 %12.1 %


Hot Mercurians
Hot Subterrans
Hot Terrans
Hot Superterrans
Hot Neptunians
Hot Jovians
61681,0531,295851451
 Warm Miniterrans Warm Subterrans
Warm Terrans
Warm Superterrans
Warm Neptunians
Warm Jovians
0221797047
Cold MiniterransCold SubterransCold TerransCold SuperterransCold NeptuniansCold Jovians
004377


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

7-Planet
Systems
2,543432147551831
79.5 %13.5 %4.6 %1.7 %0.6 %0.1 %
<0.1 %


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