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

2MASS J02495639-0557352

The planetary system 2MASS J02495639-0557352 hosts at least one planet. Note that the system is a multiple star system. It hosts at least 2 stellar components.

  System parameters
Primary system name 2MASS J02495639-0557352
Alternative system names 2MASS J0249-0557
Right ascension 02 49 56.3884942122
Declination -05 57 35.410808361
Distance [parsec] 49+4−5edit
Distance [lightyears] 159+14−18
Number of stars in system 2
Number of planets in system 1

ArchitectureArchitecture of the system

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

  •  Stellar binary
    •  2MASS J02495639-0557352 A, stellar object
      •  2MASS J02495639-0557352 B, stellar object
        •  2MASS J02495639-0557352 c, circumbinary planet, P-type

        PlanetsPlanets in the system

        This table lists all planets in the system 2MASS J02495639-0557352.

          2MASS J02495639-0557352 c
        Alternative planet names 2MASS J0249-0557 c
        Description 2MASS J0249-0557 c is a wide-separation, planetary-mass companion to a low-mass binary system of brown dwarfs in the Beta Pictoris Moving Group. The object appears to be a near-twin of the planet Beta Pictoris b.edit
        Lists Confirmed planets; Planets in binary systems, P-type
        Mass [Mjup] 11.6+1.3−1.0edit
        Mass [Mearth] 3687+413−318
        Radius [Rjup] N/A
        Radius [Rearth] N/A
        Orbital period [days] N/A
        Semi-major axis [AU] N/A
        Eccentricity N/A
        Equilibrium temperature [K] N/A
        Discovery method imaging
        Discovery year 2018
        Last updated [yy/mm/dd] 18/07/28

        starStars in the system

        This table lists all stars in the system 2MASS J02495639-0557352.

          2MASS J02495639-0557352 A 2MASS J02495639-0557352 B
        Alternative star names 2MASS J0249-0557 A 2MASS J0249-0557 B
        Mass [MSun] 0.046+0.012−0.011edit 0.042+0.013−0.011edit
        Radius [RSun] N/A N/A
        Age [Gyr] 0.022±0.006edit 0.022±0.006edit
        Metallicity [Fe/H] N/A N/A
        Temperature [K] N/A N/A
        Spectral type M6
        Visual magnitude N/A 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).

        PlutoMercuryMarsVenusEarthNeptuneUranusSaturnJupiter2MASS J02495639-0557352 c

        referencesScientific references and contributors

        Links to scientific papers and other data sources

        No links found.

        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
        No contributors found.

        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 usefule.


        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.