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GJ 414

The planetary system GJ 414 hosts at least 2 planets. Note that the system is a multiple star system. It hosts at least 2 stellar components.

  System parameters
Primary system name GJ 414
Alternative system names HD 97101
Right ascension 11 11 06
Declination +30 26 43
Distance [parsec] 11.889±0.007
Distance [lightyears] 38.78±0.02
Number of stars in system 2
Number of planets in system 2

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, semi-major axis: 408 AU
    •  GJ 414 B, stellar object
      •  GJ 414 A, stellar object
        •  GJ 414 A b, planet, semi-major axis: 0.232+0.009−0.010 AU
          •  GJ 414 A c, planet, semi-major axis: 1.40±0.06 AU

        PlanetsPlanets in the system

        This table lists all planets in the system GJ 414.

          GJ 414 A b GJ 414 A c
        Alternative planet names HD 97101 A b, HIP 54646 b HD 97101 A c, HIP 54646 c
        Description This is a sub-Neptune mass planet in a two-planet system. The outer planet in this system is a potential candidate for future direct imaging missions. The planets have been discovered by analyzing radial velocity data from Keck/HIRES and the Automated Planet Finder at Lick Observatory, as well as photometric data from KELT. The star also has a dwarf star companion at a projected distance of 408 AU. This is a sub-Saturn mass planet in a two-planet system. It is a potential candidate for future direct imaging missions. The planets have been discovered by analyzing radial velocity data from Keck/HIRES and the Automated Planet Finder at Lick Observatory, as well as photometric data from KELT. The star also has a dwarf star companion at a projected distance of 408 AU.
        Lists Confirmed planets; Planets in binary systems, S-type
        Mass [Mjup] 0.024+0.008−0.007 0.17±0.03
        Mass [Mearth] 8±2 54±9
        Radius [Rjup] 0.23+0.11−0.08 0.7+0.3−0.2
        Radius [Rearth] 2.6+1.2−0.9 8+4−2
        Orbital period [days] 50.80+0.10−0.26 750±4
        Semi-major axis [AU] 0.232+0.009−0.010 1.40±0.06
        Eccentricity 0.45+0.19−0.22 0.10+0.11−0.70
        Equilibrium temperature [K] 309±34 125±14
        Discovery method RV
        Discovery year 2021
        Last updated [yy/mm/dd] 21/04/02

        starStars in the system

        This table lists all stars in the system GJ 414.

          GJ 414 B GJ 414 A
        Alternative star names HD 97101 B HD 97101 A, HIP 54646
        Mass [MSun] 0.54±0.02 0.65±0.08
        Radius [RSun] 0.548±0.017 0.68±0.14
        Age [Gyr] N/A N/A
        Metallicity [Fe/H] N/A 0.24±0.10
        Temperature [K] 3663±70 4120±109
        Spectral type M2V K7V
        Visual magnitude N/A 8.31±0.03

        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).

        PlutoMercuryMarsVenusEarthNeptuneUranusSaturnJupiterGJ 414 A bGJ 414 A c

        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 zoneGJ 414 A bGJ 414 A 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 useful.

        correctionsCorrections

        If you spot an error or if you can contribute additional data to this entry, please send an e-mail to exoplanet@hanno-rein.de. 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.