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EPIC 204221263

The planetary system EPIC 204221263 hosts at least 2 planets.

  System parameters
Primary system name EPIC 204221263
Alternative system names N/A
Right ascension 16 00 08.06
Declination -23 11 21.4
Distance [parsec] N/A
Distance [lightyears] N/A
Number of stars in system 1
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.

  •  EPIC 204221263, stellar object
    •  EPIC 204221263 b, planet, semi-major axis: 0.0506±0.0008 AU
      •  EPIC 204221263 c, planet, semi-major axis: 0.0964±0.0016 AU

      PlanetsPlanets in the system

      This table lists all planets in the system EPIC 204221263.

        EPIC 204221263 b EPIC 204221263 c
      Alternative planet names N/A N/A
      Description EPIC 204221263 is a multi-transiting system in the K2 mission campaign 2 field. Radial velocity measurements with Keck/HIRES have allowed the determination of the planetary masses. The radial velocities exhibit a linear trend indicating the presence of an additional non-transiting companion in the system.edit EPIC 204221263 is a multi-transiting system in the K2 mission campaign 2 field. Radial velocity measurements with Keck/HIRES have allowed the determination of the planetary masses. The radial velocities exhibit a linear trend indicating the presence of an additional non-transiting companion in the system.edit
      Lists Confirmed planets
      Mass [Mjup] 0.038±0.009edit 0.031±0.014edit
      Mass [Mearth] 12±3 10±4
      Radius [Rjup] 0.138±0.014edit 0.22±0.03edit
      Radius [Rearth] 1.51±0.15 2.4±0.3
      Orbital period [days] 4.0159±0.0005edit 10.5610±0.0009edit
      Semi-major axis [AU] 0.0506±0.0008edit 0.0964±0.0016edit
      Eccentricity N/A N/A
      Equilibrium temperature [K] N/A N/A
      Discovery method transit
      Discovery year 2015
      Last updated [yy/mm/dd] 15/12/06

      starStars in the system

      This table lists all stars in the system EPIC 204221263.

        EPIC 204221263
      Alternative star names TYC 6779-268-1, 2MASS J16000805-2311213
      Mass [MSun] 1.07±0.05edit
      Radius [RSun] 1.10±0.09edit
      Age [Gyr] N/A
      Metallicity [Fe/H] 0.28±0.04edit
      Temperature [K] 5757±60edit
      Spectral type N/A
      Visual magnitude 11.39±0.03edit

      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).

      PlutoMercuryMarsVenusEarthNeptuneUranusSaturnJupiterEPIC 204221263 bEPIC 204221263 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.

      EPIC 204221263 bEPIC 204221263 c

      referencesScientific references and contributors

      Links to scientific papers and other data sources

      history http://arxiv.org/abs/1511.09213

      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 1

      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.