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an open source database of all discovered extrasolar planets


The planetary system Kepler-10 hosts at least 3 planets.

  System parameters
Primary system name Kepler-10
Alternative system names KOI-72, KIC 11904151
Right ascension 19 02 43.0612
Declination +50 14 28.7007
Distance [parsec] 173±27
Distance [lightyears] 564±88
Number of stars in system 1
Number of planets in system 3

ArchitectureArchitecture of the system

This list shows all planetary and stellar components in the system. It gives a quick overview of the hierarchical architecture.

  •  Kepler-10, stellar object
    •  Kepler-10 b, planet, semi-major axis: 0.0169±0.0001 AU
      •  Kepler-10 c, planet, semi-major axis: 0.2410±0.0019 AU
        •  KOI-72.X, planet

        PlanetsPlanets in the system

        This table lists all planets in the system Kepler-10.

          Kepler-10 b Kepler-10 c KOI-72.X
        Alternative planet names KOI-72.01, KOI-72 b, KIC 11904151 b, 2MASS J19024305+5014286 b, Gaia DR2 2132155017099178624 b KOI-72.02, KOI-72 c, KIC 11904151 c, 2MASS J19024305+5014286 c, Gaia DR2 2132155017099178624 c N/A
        Description Kepler-10b was the first rocky planet discovered by the Kepler mission. It orbits extremely close to the star and may have a magma ocean on its day side. Kepler-10c is a transiting sub-Neptune planet. Initial mass measurements suggested the planet had a largely rocky composition but subsequent measurements decreased the inferred density, indicating the planet is volatile-rich like other planets of similar radius. KOI-72.X is an unconfirmed third planet in the Kepler-10 system inferred from transit timing variations of Kepler-10c.
        Lists Confirmed planets Confirmed planets Controversial
        Mass [Mjup] 0.0102±0.0009 0.023±0.004 0.019+0.005−0.003
        Mass [Mearth] 3.2±0.3 7.4+1.3−1.2 5.9+1.7−1.0
        Radius [Rjup] 0.1340+0.0027−0.0018 0.214+0.008−0.004 N/A
        Radius [Rearth] 1.50+0.03−0.02 2.40+0.09−0.04 N/A
        Orbital period [days] 0.8375±0.0000 45.2943±0.0000 102.0±1.0
        Semi-major axis [AU] 0.0169±0.0001 0.2410±0.0019 N/A
        Eccentricity 0.00 0.00 N/A
        Equilibrium temperature [K] 2169+96−44 584+50−17 N/A
        Discovery method transit transit timing
        Discovery year 2011 2011 2016
        Last updated [yy/mm/dd] 17/11/29

        starStars in the system

        This table lists all stars in the system Kepler-10.

        Alternative star names KOI-72, KIC 11904151, 2MASS J19024305+5014286, Gaia DR2 2132155017099178624
        Mass [MSun] 0.91±0.02
        Radius [RSun] 1.065±0.009
        Age [Gyr] 10.6+1.5−1.3
        Metallicity [Fe/H] -0.15±0.04
        Temperature [K] 5643±75
        Spectral type G
        Visual magnitude 10.96

        Planet sizes

        The following plot shows the approximate sizes of the planets in this system The Solar System planets are shown as a comparison. Note that unless the radius has been determined through a transit observation, this is only an approximation (see Lissauer et al. 2011b).

        PlutoMercuryMarsVenusEarthNeptuneUranusSaturnJupiterKepler-10 bKepler-10 cKOI-72.X

        Habitable zone

        The following plot shows the approximate location of the planets in this system with respect to the habitable zone (green) and the size of the star (red). This is only an estimate, using the star's spectral type and mass. Note that if no green band is shown in the plot, then the planet's orbit is far outside the habitable zone. The equations of Selsis, Kasting et al are used to draw the inner and outer boundaries.

        Habitable zoneKepler-10 bKepler-10 cKOI-72.X

        referencesScientific references and contributors

        Links to scientific papers and other data sources


        This table lists all links which are relevant to this particular system. Note that this is just a summary. More references to the scientific publications and comments can be found in the commit messages. To see these, head over the github or click here to directly go to the git blame output of this system. In the left column of the output you can see the commit message corresponding to each parameter. It also lists the date of the last commit and the person making the changes. Within the commit message, you will find a link to the scientific publication where the data is taken from. Note that this is a new feature and not all system parameters might have a reference associated with it yet. Please help making this catalogue better and contribute data or references!

        Open Exoplanet Catalogue contributors

        Contributor E-mail Number of commits
        Andrew Tribick ajtribick(at) 3
        Hanno Rein hanno(at) 10
        Marc-Antoine ma.martinod(at) 2
        Marc-Antoine Martinod marc-antoine.martinod(at) 2
        Ryan Varley ryanjvarley(at) 3

        This table lists all people who have contributed to the Open Exoplanet Catalogue. Please consider contributing! Click here to find out how. You can also view all commits contributing to this file on github.

        xmlData download

        You can download the xml file corresponding to this planetary system, which is part of the Open Exoplanet Catalogue. All information on this page has been directly generated from this XML file. You can also download the entire catalogue over at github. If you prefer to download the dataset as an ASCII tables, you might find the oec_tables repository useful.


        If you spot an error or if you can contribute additional data to this entry, please send an e-mail to Please include the corrected xml file and a reference to where the new data is coming from, ideally a scientific paper. If you are fluent with git and github, you can also create a pull request or open an issue on the Open Exoplanet Catalogue repository. Please include the reference to the relevant scientific paper in your commit message.