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Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

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Proxima Cen b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/Proxima Cen b

Confirmed exoplanet · Terrestrial

Proxima Cen b

Orbiting Proxima Cen

Discovered in 2016 using Radial Velocity. 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 Proxima Cen b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,016
Method: Radial Velocity
Radius: 1.02 R⊕
Mass: 1.055 M⊕
Orbit: 11.18465 days
Distance: 1.30119 pc

Planet profile

Orbit and physical properties

Orbital period: 11.18465 days
Semi-major axis: 0.04848 AU
Eccentricity: 0
Radius: 1.02 Earth radii
Mass: 1.055 Earth masses
Mass provenance: Msini
Density: 5.46 g/cm³
Equilibrium temperature: 218 K
Insolation: 0.641 Earth flux

Host system

Star and system properties

Host star: Proxima Cen
Stars in system: 3
Known planets in system: 2
Spectral type: M5.5 V
Stellar temperature: 2,900 K
Stellar radius: 0.141 R☉
Stellar mass: 0.1221 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 1.30119 parsecs
Right ascension: 14h29m34.43s
Declination: -62d40m34.26s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,016
Publication date: 2016-08
Discovery locale: Ground
Facility: European Southern Observatory
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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