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Kepler-446 d | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/Kepler-446 d

Confirmed exoplanet · Terrestrial

Kepler-446 d

Orbiting Kepler-446

Discovered in 2015 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic terrestrial catalog artwork; not a direct image of Kepler-446 d — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,015
Method: Transit
Radius: 1.35 R⊕
Mass: 2.39 M⊕
Orbit: 5.148921 days
Distance: 96.339 pc

Planet profile

Orbit and physical properties

Orbital period: 5.148921 days
Semi-major axis: 0.0403 AU
Eccentricity: 0
Radius: 1.35 Earth radii
Mass: 2.39 Earth masses
Mass provenance: M-R relationship
Density: 5.34 g/cm³
Equilibrium temperature: 436 K
Insolation: 3.307 Earth flux

Host system

Star and system properties

Host star: Kepler-446
Stars in system: 1
Known planets in system: 3
Spectral type: M4
Stellar temperature: 3,359 K
Stellar radius: 0.24 R☉
Stellar mass: 0.22 M☉
Stellar metallicity: -0.3 dex
Stellar age: 3.72 Gyr
Distance: 96.339 parsecs
Right ascension: 18h49m00.03s
Declination: +44d55m15.61s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,015
Publication date: 2015-03
Discovery locale: Space
Facility: Kepler
Telescope: 0.95 m Kepler Telescope
Instrument: Kepler CCD Array
NASA Exoplanet Archive: Open composite record ↗

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