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GJ 4274 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 4274 b

Confirmed exoplanet · Super Earth

GJ 4274 b

Orbiting GJ 4274

Discovered in 2026 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 4274 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,026
Method: Radial Velocity
Radius: 1.53 R⊕
Mass: 2.97 M⊕
Orbit: 1.6339 days
Distance: 7.23556 pc

Planet profile

Orbit and physical properties

Orbital period: 1.6339 days
Semi-major axis: 0.0153 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 1.53 Earth radii
Mass: 2.97 Earth masses
Mass provenance: Msini
Density: 4.56 g/cm³
Equilibrium temperature: 548.53 K
Insolation: 14.7 Earth flux

Host system

Star and system properties

Host star: GJ 4274
Stars in system: 1
Known planets in system: 2
Spectral type: M4.5 V
Stellar temperature: 3,228 K
Stellar radius: 0.19 R☉
Stellar mass: 0.18 M☉
Stellar metallicity: -0.19 dex
Stellar age: 0.12 Gyr
Distance: 7.23556 parsecs
Right ascension: 22h23m07.33s
Declination: -17d36m37.47s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,026
Publication date: 2026-01
Discovery locale: Ground
Facility: Mauna Kea Observatory
Telescope: 3.58 m Canada-France-Hawaii Telescope (CFHT)
Instrument: SPIRou
NASA Exoplanet Archive: Open composite record ↗

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