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GJ 273 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 273 b

Confirmed exoplanet · Super Earth

GJ 273 b

Orbiting GJ 273

Discovered in 2017 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic super earth catalog artwork; not a direct image of GJ 273 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,017
Method: Radial Velocity
Radius: 1.51 R⊕
Mass: 2.89 M⊕
Orbit: 18.6498 days
Distance: 5.921535 pc

Planet profile

Orbit and physical properties

Orbital period: 18.6498 days
Semi-major axis: 0.091101 AU
Eccentricity: 0.1
Radius: 1.51 Earth radii
Mass: 2.89 Earth masses
Mass provenance: Msini
Density: 4.61 g/cm³
Equilibrium temperature: 292.47 K
Insolation: 1.06 Earth flux

Host system

Star and system properties

Host star: GJ 273
Stars in system: 1
Known planets in system: 2
Spectral type: M3.5
Stellar temperature: 3,382 K
Stellar radius: 0.293 R☉
Stellar mass: 0.29 M☉
Stellar metallicity: 0.09 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 5.921535 parsecs
Right ascension: 07h27m24.50s
Declination: +05d13m32.91s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,017
Publication date: 2017-06
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 3.6 m ESO Telescope
Instrument: HARPS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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