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Kepler-391 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/Kepler-391 c

Confirmed exoplanet · Neptune Like

Kepler-391 c

Orbiting Kepler-391

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

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of Kepler-391 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,014
Method: Transit
Radius: 2.88 R⊕
Mass: 450 M⊕
Orbit: 20.501 days
Distance: 869.236 pc

Planet profile

Orbit and physical properties

Orbital period: 20.501 days
Semi-major axis: 0.164 AU
Eccentricity: 0.27
Radius: 2.88 Earth radii
Mass: 450 Earth masses
Mass provenance: Mass
Density: 400 g/cm³
Equilibrium temperature: 662 K
Insolation: 179 Earth flux

Host system

Star and system properties

Host star: Kepler-391
Stars in system: 1
Known planets in system: 2
Spectral type: K2 III-IV
Stellar temperature: 5,038 K
Stellar radius: 2.879 R☉
Stellar mass: 1.27 M☉
Stellar metallicity: 0.04 dex
Stellar age: 4.365 Gyr
Distance: 869.236 parsecs
Right ascension: 19h22m29.25s
Declination: +51d03m26.44s

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-391 c.

Generic neptune like catalog artwork; not a direct image of Kepler-391 c — Apex Andromeda catalog artwork