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an open source database of all discovered extrasolar planets

Gliese 436

The planetary system Gliese 436 hosts at least 2 planets.

  System parameters
Primary system name Gliese 436
Alternative system names GJ 436
Right ascension 11 42 11
Declination +26 42 23
Distance [parsec] 10.1±0.2edit
Distance [lightyears] 33.1±0.8
Number of stars in system 1
Number of planets in system 2

ImageImage

 

This artist's concept shows what astronomers believe is an alien world just two-thirds the size of Earth. It was identified by NASA's Spitzer Space Telescope. UCF-1.01 might be the nearest world to our solar system that is smaller than our home planet. Credit: NASA/JPL-Caltech

ArchitectureArchitecture of the system

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

  •  Gliese 436, stellar object
    •  Gliese 436 b, planet, semi-major axis: 0.029±0.005 AU
      •  Gliese 436 c, planet, semi-major axis: 0.0185 AU

      PlanetsPlanets in the system

      This table lists all planets in the system Gliese 436.

        Gliese 436 b Gliese 436 c
      Alternative planet names GJ 436 b, Gj 436 b, Gl 436 b GJ 436 c, Gj 436 c, Gl 436 c, UCF-1.01
      Description The star Gliese 436 is located in the constellation Leo. Due to tidal forces the planet Gliese 436b is expected to circularise on short timescales. It might be perturbed by an additional planet in the system.edit The star Gliese 436 is located in the constellation Leo. While observing the already known planet Gliese 436 b with the Spitzer Space Telescope, astronomers have discovered an additional transiting planet Gliese 436 c. The planet is also known as UCF-1.01. There might be even more planets in the system.edit
      Lists Confirmed planets Controversial
      Mass [Mjup] 0.073±0.003edit 8.81 ·10-4edit
      Mass [Mearth] 23.1±1.0 0.280
      Radius [Rjup] 0.377+0.008−0.009edit 0.0601edit
      Radius [Rearth] 4.13+0.09−0.10 0.660
      Orbital period [days] 2.6439±0.0001edit 1.366edit
      Semi-major axis [AU] 0.029±0.005edit 0.0185edit
      Eccentricity 0.150±0.012edit 0.00edit
      Equilibrium temperature [K] 650edit 814edit
      Discovery method transit
      Discovery year 2004 2012
      Last updated [yy/mm/dd] 14/03/31 12/07/20

      starStars in the system

      This table lists all stars in the system Gliese 436.

        Gliese 436
      Alternative star names N/A
      Mass [MSun] 0.452+0.014−0.012edit
      Radius [RSun] 0.464+0.014−0.012edit
      Age [Gyr] N/A
      Metallicity [Fe/H] -0.320edit
      Temperature [K] 3684edit
      Spectral type M2V
      Visual magnitude 10.590+0.009−0.011edit

      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 436 bGliese 436 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.

      Gliese 436 bGliese 436 c

      referencesScientific references and contributors

      Links to scientific papers and other data sources

      history http://cdsbib.u-strasbg.fr/cgi-bin/cdsbib?2003yCat.2246....0C
      history http://cdsads.u-strasbg.fr/abs/2012ApJ...755....9S
      history http://arxiv.org/pdf/1403.6834v1.pdf
      history http://exoplanet.eu
      history http://arxiv.org/abs/0809.1664
      history http://arxiv.org/pdf/0809.1664v2.pdf
      history http://phl.upr.edu/projects/habitable-exoplanets-catalog/data/database
      history http://cdsbib.u-strasbg.fr/cgi-bin/cdsbib?2000A%26A...355L..27H

      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
      Hanno Rein hanno(at)hanno-rein.de 8
      Jaroslav Merc jaroslav.merc(at)gmail.com 1
      Marc-Antoine Martinod marc-antoine.martinod(at)ens-cachan.fr 7
      Ryan Varley ryanjvarley(at)gmail.com 2

      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.