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an open source database of all discovered extrasolar planets

HD 20003

The planetary system HD 20003 hosts at least 2 planets.

  System parameters
Primary system name HD 20003
Alternative system names N/A
Right ascension 03 07 37.9173
Declination -72 19 18.7956
Distance [parsec] 43.8
Distance [lightyears] 142.9
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.

  •  HD 20003, stellar object
    •  HD 20003 b, planet, semi-major axis: 0.0974 AU
      •  HD 20003 c, planet, semi-major axis: 0.1961 AU

      PlanetsPlanets in the system

      This table lists all planets in the system HD 20003.

        HD 20003 b HD 20003 c
      Alternative planet names HIP 14530 b, TYC 9148-596-1 b, Gaia DR2 4642472794978268800 b HIP 14530 c, TYC 9148-596-1 c, Gaia DR2 4642472794978268800 c
      Description This planet is part of a large data release by the Euopean HARP team.
      Lists Confirmed planets
      Mass [Mjup] 0.0378 0.0422
      Mass [Mearth] 12.01 13.41
      Radius [Rjup] N/A N/A
      Radius [Rearth] N/A N/A
      Orbital period [days] 11.85 33.8
      Semi-major axis [AU] 0.0974 0.1961
      Eccentricity 0.400 0.1600
      Equilibrium temperature [K] 752 534
      Discovery method RV
      Discovery year 2011
      Last updated [yy/mm/dd] 11/09/12

      starStars in the system

      This table lists all stars in the system HD 20003.

        HD 20003
      Alternative star names HIP 14530, TYC 9148-596-1, Gaia DR2 4642472794978268800
      Mass [MSun] N/A
      Radius [RSun] N/A
      Age [Gyr] N/A
      Metallicity [Fe/H] N/A
      Temperature [K] 5940
      Spectral type G8V
      Visual magnitude 8.37

      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).

      PlutoMercuryMarsVenusEarthNeptuneUranusSaturnJupiterHD 20003 bHD 20003 c

      referencesScientific references and contributors

      Links to scientific papers and other data sources


      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) 6
      Marc-Antoine Martinod marc-antoine.martinod(at) 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 useful.


      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.