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an open source database of all discovered extrasolar planets

FL Lyr

The planetary system FL Lyr hosts at least one planet. Note that the system is a multiple star system. It hosts at least 2 stellar components.

  System parameters
Primary system name FL Lyr
Alternative system names N/A
Right ascension 19 12 04.86170
Declination +46 19 26.8632
Distance [parsec] 130±13
Distance [lightyears] 424±42
Number of stars in system 2
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.

  •  Stellar binary, 2.1782±0.0000 days
    •  FL Lyr A, stellar object
      •  FL Lyr B, stellar object
        •  FL Lyr b, circumbinary planet, P-type

        PlanetsPlanets in the system

        This table lists all planets in the system FL Lyr.

          FL Lyr b
        Alternative planet names FL Lyrae b, FL Lyrae (AB) b
        Description The presence of a substellar companion in orbit around the binary star FL Lyrae is inferred from eclipse timing variations detected by Kepler. Measurements over a longer term are required to confirm the existence of the planet.
        Lists Controversial; Planets in binary systems, P-type
        Mass [Mjup] > 2.0000
        Mass [Mearth] > 635.6568
        Radius [Rjup] N/A
        Radius [Rearth] N/A
        Orbital period [days] > 2600.0000
        Semi-major axis [AU] N/A
        Eccentricity N/A
        Equilibrium temperature [K] N/A
        Discovery method timing
        Discovery year 2015
        Last updated [yy/mm/dd] 15/11/16

        starStars in the system

        This table lists all stars in the system FL Lyr.

          FL Lyr A FL Lyr B
        Alternative star names FL Lyrae A, HD 179890 A, HIP 94335 A, SAO 48190 A, BD+46 2641 A, KIC 9641031 A FL Lyrae B, HD 179890 B, HIP 94335 B, SAO 48190 B, BD+46 2641 B, KIC 9641031 B
        Mass [MSun] 1.218±0.016 0.96±0.03
        Radius [RSun] 1.128+0.092−0.011 1.13+0.03−0.05
        Age [Gyr] N/A N/A
        Metallicity [Fe/H] N/A N/A
        Temperature [K] 6152±99 5297±98
        Spectral type F8V G8V
        Visual magnitude 9.58 11.04

        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).


        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) 2
        Hanno Rein hanno(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.