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K2-278 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-278 b

Confirmed exoplanet · Neptune Like

K2-278 b

Orbiting K2-278

Discovered in 2018 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 K2-278 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Transit
Radius: 2.98 R⊕
Mass: 9.17 M⊕
Orbit: 3.334966 days
Distance: 786.439 pc

Planet profile

Orbit and physical properties

Orbital period: 3.334966 days
Semi-major axis: 0.0488 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 2.98 Earth radii
Mass: 9.17 Earth masses
Mass provenance: M-R relationship
Density: 1.9 g/cm³
Equilibrium temperature: 1,711 K
Insolation: 1,051.5587 Earth flux

Host system

Star and system properties

Host star: K2-278
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 6,747 K
Stellar radius: 1.61 R☉
Stellar mass: 1.4 M☉
Stellar metallicity: 0 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 786.439 parsecs
Right ascension: 13h33m12.45s
Declination: -14d30m14.78s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,018
Publication date: 2018-12
Discovery locale: Space
Facility: K2
Telescope: 0.95 m Kepler Telescope
Instrument: Kepler CCD Array
NASA Exoplanet Archive: Open composite record ↗

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