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Kepler-399 d | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/Kepler-399 d

Confirmed exoplanet · Super Earth

Kepler-399 d

Orbiting Kepler-399

Discovered in 2014 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic super earth catalog artwork; not a direct image of Kepler-399 d — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,014
Method: Transit
Radius: 1.89 R⊕
Mass: 4.23 M⊕
Orbit: 58.034616 days
Distance: 740.537 pc

Planet profile

Orbit and physical properties

Orbital period: 58.034616 days
Semi-major axis: 0.261 AU
Eccentricity: 0
Radius: 1.89 Earth radii
Mass: 4.23 Earth masses
Mass provenance: M-R relationship
Density: 3.44 g/cm³
Equilibrium temperature: 486 K
Insolation: 5.57 Earth flux

Host system

Star and system properties

Host star: Kepler-399
Stars in system: 1
Known planets in system: 3
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 5,502 K
Stellar radius: 0.68 R☉
Stellar mass: 0.902 M☉
Stellar metallicity: 0.14 dex
Stellar age: 3.98 Gyr
Distance: 740.537 parsecs
Right ascension: 19h58m00.41s
Declination: +40d40m14.76s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,014
Publication date: 2014-03
Discovery locale: Space
Facility: Kepler
Telescope: 0.95 m Kepler Telescope
Instrument: Kepler CCD Array
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from Kepler-399 d.

Generic super earth catalog artwork; not a direct image of Kepler-399 d — Apex Andromeda catalog artwork