Fork me on GitHub
an open source database of all discovered extrasolar planets


The planetary system Kepler-452 hosts at least one planet.

  System parameters
Primary system name Kepler-452
Alternative system names KIC 8311864, KOI-7016
Right ascension 19 44 00.8860
Declination +44 16 39.1704
Distance [parsec] 430
Distance [lightyears] 1402
Number of stars in system 1
Number of planets in system 1



This artist's concept depicts one possible appearance of the planet Kepler-452b, the first near-Earth-size world to be found in the habitable zone of star that is similar to our sun. The habitable zone is a region around a star where temperatures are right for water -- an essential ingredient for life as we know it -- to pool on the surface. Scientists do not know if Kepler-452b can support life or not. What is known about the planet is that it is about 60 percent larger than Earth, placing it in a class of planets dubbed Super-Earths. While its mass and composition are not yet determined, previous research suggests that planets the size of Kepler-452b have a better than even chance of being rocky. Kepler-452b orbits its star every 385 days. The planet's star is about 1,400 light-years away in the constellation Cygnus. It is a G2-type star like our sun, with nearly the same temperature and mass. This star is 6 billion years old, 1.5 billion years older than our sun. As stars age, they grow in size and give out more energy, warming up their planets over time. Image credit: NASA Ames/JPL-Caltech/T. Pyle

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-452, stellar object
    •  Kepler-452 b, planet, semi-major axis: 1.046+0.019−0.015 AU

    PlanetsPlanets in the system

    This table lists all planets in the system Kepler-452.

      Kepler-452 b
    Alternative planet names KIC 8311864 b, KOI-7016.01, KOI-7016 b, Gaia DR2 2079597124345617280 b
    Description Kepler-452 b is about 60% larger in size than Earth and located in the habitable zone of a Sun-like star located 1400 light years away. At the speed of New Horizons, the fastest spacecraft yet launched by humanity, it would take over 25 million years to get there. The planet orbits its host star every 385 days. With an age of 6 billion years it is roughly 1.5 billion years older than our Sun.
    Lists Confirmed planets
    Mass [Mjup] N/A
    Mass [Mearth] N/A
    Radius [Rjup] 0.149+0.021−0.018
    Radius [Rearth] 1.7±0.2
    Orbital period [days] 384.843+0.015−0.019
    Semi-major axis [AU] 1.046+0.019−0.015
    Eccentricity N/A
    Equilibrium temperature [K] 265+15−13
    Discovery method transit
    Discovery year 2015
    Last updated [yy/mm/dd] 15/07/23

    starStars in the system

    This table lists all stars in the system Kepler-452.

    Alternative star names KIC 8311864, KOI-7016, 2MASS J19440088+4416392, Gaia DR2 2079597124345617280
    Mass [MSun] 1.04±0.05
    Radius [RSun] 1.11+0.15−0.09
    Age [Gyr] 6±2
    Metallicity [Fe/H] 0.21±0.09
    Temperature [K] 5757±85
    Spectral type N/A
    Visual magnitude N/A

    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-452 b

    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-452 b

    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) 1
    Hanno Rein hanno(at) 6

    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.