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GJ 4274 b is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune) with a mass of 3.0 Earth masses. The planet completes one orbit around its star every 39 hours. It was discovered in 2026 using the radial velocity method. It orbits the M-type star GJ 4274, located approximately 7 parsecs (24 light-years) from Earth.
2026
Discovered
3.0
Earth Masses
Discovery Information
Discovery MethodRadial Velocity
Discovery Year2,026
Discovery FacilityMauna Kea Observatory
Orbital Properties
Orbital Period1.6339 days
Semi-Major Axis0.0153 AU
Physical Properties
Mass (Jupiter)0.0093 MJ
Mass (Earth)2.97 M⊕
Insolation Flux14.7 S⊕
Planetary Extremes
Where GJ 4274 b sits on the spectrum of all known exoplanets.
Mass3.0 M⊕
FeatherweightColossus
Year Length1.6 days
LightningGlacial
Star Distance0.015 AU
ScorchedFrozen exile
Star System View
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Orbit Comparison
Earth: 365.25 days (1 AU)GJ 4274 b: 39 hours (0.015 AU)
Host Star: GJ 4274
Spectral TypeM4.5 V
Effective Temperature3,228 K
Mass0.18 M☉
Radius0.19 R☉
Size vs Sun5.26x smaller
Luminosity0.0035 L☉
Luminosity vs Sun289.9x dimmer
Metallicity [Fe/H]-0.19
Distance (pc)7.2356 pc
Distance (ly)23.6 light-years
Planets in the GJ 4274 System
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