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  1. Home
  2. Exoplanets
  3. GJ 4274 b
Exoplanet

GJ 4274 b

Host star: GJ 4274Discovered: 2026
Radial VelocityMauna Kea Observatory

Distance from Earth: 7.2 parsecs (23.6 light years)

Discovery Method: Radial Velocity

The radial velocity (Doppler) method detects the slight wobble a planet induces in its host star as both bodies orbit their common center of mass. By measuring tiny shifts in the star's spectral lines, astronomers can infer the planet's minimum mass and orbital period. This was the first technique to successfully detect exoplanets around Sun-like stars.

Physical Properties

Radius

Unknown

Mass

2.97 M⊕

1.77E25 kg

Orbital Period

1.63 days

0.004 years

Eq. Temperature

Unknown

Orbital Semi-major Axis

0.0153 AU

Density

Unknown

Compared to Earth

Mass

GJ 4274 b2.97 M\u2295
Earth1.00 M\u2295

2.97x Earth

Orbital Period

GJ 4274 b1.63 days
Earth365.25 days

0.004x Earth

Star System: GJ 4274

Star Temperature

3,228 K

Star Radius

0.19 R☉

Star Mass

0.18 M☉

Planets in System

2

Stars in System

1

Habitability Assessment

Stellar Flux

Receives 14.70x Earth's insolation, outside the habitable zone.

Habitable Zone

This planet orbits outside the estimated habitable zone of its star.

Habitability assessments are rough estimates based on limited available data. True habitability depends on many additional factors including atmospheric composition, magnetic field presence, tidal locking, and stellar activity. These assessments should not be considered definitive.

Exoplanet ExplorerNASA Archive

All Exoplanets

Solar System

The Sun

Glossary

ISS Tracker

Eccentricity

Unknown

Insolation Flux

14.70 S⊕

Earth flux = 1.0