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K2-55 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/K2-55 b

Confirmed exoplanet · Neptune Like

K2-55 b

Orbiting K2-55

Discovered in 2016 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 K2-55 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,016
Method: Transit
Radius: 4.43 R⊕
Mass: 44 M⊕
Orbit: 2.849271 days
Distance: 159.522 pc

Planet profile

Orbit and physical properties

Orbital period: 2.849271 days
Semi-major axis: 0.03486 AU
Eccentricity: 0.07
Radius: 4.43 Earth radii
Mass: 44 Earth masses
Mass provenance: Mass
Density: 2.8 g/cm³
Equilibrium temperature: 900 K
Insolation: 141.3 Earth flux

Host system

Star and system properties

Host star: K2-55
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: 4,300 K
Stellar radius: 0.715 R☉
Stellar mass: 0.688 M☉
Stellar metallicity: 0.376 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 159.522 parsecs
Right ascension: 22h15m00.45s
Declination: -17d15m02.88s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,016
Publication date: 2016-09
Discovery locale: Space
Facility: K2
Telescope: 0.95 m Kepler Telescope
Instrument: Kepler CCD Array
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from K2-55 b.

Generic neptune like catalog artwork; not a direct image of K2-55 b — Apex Andromeda catalog artwork