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Gliese 667

The planetary system Gliese 667 hosts at least 7 planets. Note that the system is a multiple star system. It hosts at least 3 stellar components.

  System parameters
Primary system name Gliese 667
Alternative system names N/A
Right ascension 17 18 57
Declination -34 59 23
Distance [parsec] 6.97edit
Distance [lightyears] 22.7
Number of stars in system 3
Number of planets in system 7

ImageImage

 

This artist's impression shows the view from the exoplanet Gliese 667 C d looking towards the planet's parent star (Gliese 667 C). In the background to the right the more distant stars in this triple system (Gliese 667 A and Gliese 667 B) are visible and to the left in the sky one of the other planets, the newly discovered Gliese 667 Ce, can be seen as a crescent. A record-breaking three planets in this system are super-Earths lying in the zone around the star where liquid water could exist, making them possible candidates for the presence of life. This is the first system found with a fully packed habitable zone. Credit: ESO/M. Kornmesser

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
    •  Stellar binary, 0.1154 years
      •  Gliese 667 A, stellar object
        •  Gliese 667 B, stellar object
        •  Gliese 667 C, stellar object
          •  Gliese 667 C b, planet, semi-major axis: 0.051+0.004−0.005 AU
            •  Gliese 667 C h, planet, semi-major axis: 0.089+0.008−0.009 AU
              •  Gliese 667 C c, planet, semi-major axis: 0.125+0.012−0.013 AU
                •  Gliese 667 C f, planet, semi-major axis: 0.156+0.014−0.017 AU
                  •  Gliese 667 C e, planet, semi-major axis: 0.213+0.019−0.022 AU
                    •  Gliese 667 C d, planet, semi-major axis: 0.28+0.02−0.03 AU
                      •  Gliese 667 C g, planet, semi-major axis: 0.55+0.05−0.06 AU

                    PlanetsPlanets in the system

                    This table lists all planets in the system Gliese 667.

                      Gliese 667 C b Gliese 667 C h Gliese 667 C c Gliese 667 C f Gliese 667 C e Gliese 667 C d Gliese 667 C g
                    Alternative planet names GJ 667 C b, HR 6426C b GJ 667C h, HR 6426C h GJ 667C c, HR 6426C c GJ 667C f, HR 6426C f GJ 667C e, HR 6426C e GJ 667 C d, HR 6426 C d GJ 667 C g, HR 6426 C g
                    Description Gliese 667 is a nearby triple star system in the constellation Scorpius, about 22 light years away. The star Gliese 667 C hosts at least six planets. Three of them, all Super-Earths, are located in the habitable zone. The habitable zone is so densely packed that any additional planet is likely to destabilize the system. This planet, Gliese 667 C b, is located too close to the star and not in the habitable zone.edit Gliese 667 is a nearby triple star system in the constellation Scorpius, about 22 light years away. The star Gliese 667 C hosts at least six planets. Three of them, all Super-Earths, are located in the habitable zone. The habitable zone is so densely packed that any additional planet is likely to destabilize the system. This planet, Gliese 667 C h has yet to be confirmed.edit Gliese 667 is a nearby triple star system in the constellation Scorpius, about 22 light years away. The star Gliese 667 C hosts at least six planets. Three of them, all Super-Earths, are located in the habitable zone. The habitable zone is so densely packed that any additional planet is likely to destabilize the system. This planet, Gliese 667 C c, is located on the inner edge of the habitable zone.edit Gliese 667 is a nearby triple star system in the constellation Scorpius, about 22 light years away. The star Gliese 667 C hosts at least six planets. Three of them, all Super-Earths, are located in the habitable zone. The habitable zone is so densely packed that any additional planet is likely to destabilize the system. This planet, Gliese 667 C f, is right in the middle of the habitable zone.edit Gliese 667 is a nearby triple star system in the constellation Scorpius, about 22 light years away. The star Gliese 667 C hosts at least six planets. Three of them, all Super-Earths, are located in the habitable zone. The habitable zone is so densely packed that any additional planet is likely to destabilize the system. This planet, Gliese 667 C e, is close the outer edge of the habitable zone.edit Gliese 667 is a nearby triple star system in the constellation Scorpius, about 22 light years away. The star Gliese 667 C hosts at least six planets. Three of them, all Super-Earths, are located in the habitable zone. The habitable zone is so densely packed that any additional planet is likely to destabilize the system. This planet, Gliese 667 C d, is located outside the habitable zone and therefore to cool to host liquid water on its surface.edit Gliese 667 is a nearby triple star system in the constellation Scorpius, about 22 light years away. The star Gliese 667 C hosts at least six planets. Three of them, all Super-Earths, are located in the habitable zone. The habitable zone is so densely packed that any additional planet is likely to destabilize the system. This planet, Gliese 667 C g, is outside the habitable zone and cannot host liquid water on its surface.edit
                    Lists Confirmed planets; Planets in binary systems, S-type Controversial; Planets in binary systems, S-type Confirmed planets; Planets in binary systems, S-type Controversial; Planets in binary systems, S-type Controversial; Planets in binary systems, S-type Controversial; Planets in binary systems, S-type Controversial; Planets in binary systems, S-type
                    Mass [Mjup] 0.018±0.004edit 0.003±0.003edit 0.012+0.005−0.004edit 0.008±0.004edit 0.008+0.005−0.004edit 0.016+0.006−0.005edit 0.014+0.008−0.007edit
                    Mass [Mearth] 5.6+1.4−1.3 1.1+1.0−0.9 3.8+1.5−1.2 2.7+1.4−1.2 2.7+1.6−1.4 5.1+1.8−1.7 5+3−2
                    Radius [Rjup] N/A N/A N/A N/A N/A N/A N/A
                    Radius [Rearth] N/A N/A N/A N/A N/A N/A N/A
                    Orbital period [days] 7.2004±0.0017edit 16.95+0.05−0.07edit 28.14+0.05−0.07edit 39.03+0.19−0.21edit 62.2±0.6edit 91.6+0.8−0.9edit 256+14−8edit
                    Semi-major axis [AU] 0.051+0.004−0.005edit 0.089+0.008−0.009edit 0.125+0.012−0.013edit 0.156+0.014−0.017edit 0.213+0.019−0.022edit 0.28+0.02−0.03edit 0.55+0.05−0.06edit
                    Eccentricity 0.13+0.10−0.11edit 0.06+0.32−0.06edit 0.02+0.15−0.02edit 0.03+0.16−0.03edit 0.02+0.22−0.02edit 0.03+0.20−0.03edit 0.08+0.41−0.08edit
                    Equilibrium temperature [K] N/A N/A N/A N/A N/A N/A N/A
                    Discovery method RV
                    Discovery year 2009 2013 2009 2013 2013 2013 2013
                    Last updated [yy/mm/dd] 13/06/25

                    starStars in the system

                    This table lists all stars in the system Gliese 667.

                      Gliese 667 A Gliese 667 B Gliese 667 C
                    Alternative star names HR 6426 A, HIP 84709 A HR 6426 B, HIP 84709 B HR 6426 C
                    Mass [MSun] 0.730edit 0.690edit 0.33±0.02edit
                    Radius [RSun] 0.760edit 0.700edit 0.410edit
                    Age [Gyr] 6±4edit 6±4edit > 2.0000edit
                    Metallicity [Fe/H] -0.59±0.10edit -0.59±0.10edit N/A
                    Temperature [K] N/A N/A 3350±50edit
                    Spectral type N/A N/A M1.5V
                    Visual magnitude N/A N/A 10.22edit

                    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).

                    PlutoMercuryMarsVenusEarthNeptuneUranusSaturnJupiterGliese 667 C bGliese 667 C hGliese 667 C cGliese 667 C fGliese 667 C eGliese 667 C dGliese 667 C g

                    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 zoneGliese 667 C bGliese 667 C hGliese 667 C cGliese 667 C fGliese 667 C eGliese 667 C dGliese 667 C g

                    referencesScientific references and contributors

                    Links to scientific papers and other data sources

                    history http://adsabs.harvard.edu/abs/2001A&A...367..521P
                    history http://adsabs.harvard.edu/abs/2014MNRAS.437.3540F
                    history http://www.eso.org/public/news/eso1328/
                    history http://vizier.u-strasbg.fr/viz-bin/VizieR-S?WDS%20J17190-3459AB
                    history http://adsabs.harvard.edu/abs/2008MNRAS.389..925T

                    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)googlemail.com 2
                    Hanno Rein hanno(at)hanno-rein.de 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 usefule.

                    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.