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an open source database of all discovered extrasolar planets

HD 38858

The planetary system HD 38858 hosts at least one planet.

  System parameters
Primary system name HD 38858
Alternative system names N/A
Right ascension 05 48 34.9401
Declination -04 05 40.7195
Distance [parsec] 15.20
Distance [lightyears] 49.6
Number of stars in system 1
Number of planets in system 1

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 38858, stellar object
    •  HD 38858 b, planet, semi-major axis: 1.038 AU

    PlanetsPlanets in the system

    This table lists all planets in the system HD 38858.

      HD 38858 b
    Alternative planet names Gaia DR2 3023711269067191296 b, TYC 4776-1306-1 b, GJ 1085 b, HIP 27435 b
    Description The planet candidate HD 38858 b has been shown to be an alias of the stellar magnetic cycle, which lasts 2930 days.
    Lists Retracted planet candidate
    Mass [Mjup] 0.0961
    Mass [Mearth] 30.5
    Radius [Rjup] N/A
    Radius [Rearth] N/A
    Orbital period [days] 407
    Semi-major axis [AU] 1.038
    Eccentricity 0.270
    Equilibrium temperature [K] 237
    Discovery method RV
    Discovery year 2011
    Last updated [yy/mm/dd] 15/03/13

    starStars in the system

    This table lists all stars in the system HD 38858.

      HD 38858
    Alternative star names Gaia DR2 3023711269067191296, TYC 4776-1306-1, GJ 1085, HIP 27435
    Mass [MSun] N/A
    Radius [RSun] N/A
    Age [Gyr] N/A
    Metallicity [Fe/H] N/A
    Temperature [K] 5940
    Spectral type G4V
    Visual magnitude 5.97

    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 38858 b

    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
    Andrew Tribick ajtribick(at) 1
    Hanno Rein hanno(at) 7
    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.