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HD 211970 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 211970 b

Confirmed exoplanet · Neptune Like

HD 211970 b

Orbiting HD 211970

Discovered in 2019 using Radial Velocity. 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 HD 211970 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,019
Method: Radial Velocity
Radius: 3.66 R⊕
Mass: 13 M⊕
Orbit: 25.201 days
Distance: 13.1277 pc

Planet profile

Orbit and physical properties

Orbital period: 25.201 days
Semi-major axis: 0.143 AU
Eccentricity: 0.15
Radius: 3.66 Earth radii
Mass: 13 Earth masses
Mass provenance: Msini
Density: 1.46 g/cm³
Equilibrium temperature: 398.77 K
Insolation: 4.2125 Earth flux

Host system

Star and system properties

Host star: HD 211970
Stars in system: 1
Known planets in system: 1
Spectral type: K7 V
Stellar temperature: 4,127 K
Stellar radius: 0.574175 R☉
Stellar mass: 0.61 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 13.1277 parsecs
Right ascension: 22h22m15.88s
Declination: -54d33m34.56s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,019
Publication date: 2019-06
Discovery locale: Ground
Facility: Las Campanas Observatory
Telescope: 6.5 m Magellan II Clay Telescope
Instrument: Carnegie Planet Finder Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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