Gaia-4 b
Orbiting Gaia-4
Gaia-4 b is an exoplanet orbiting the star Gaia-4, discovered in 2025 using the Astrometry method.
Mass
3750.38
Earth masses
Orbital Period
571.3
days
Distance
73.5
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
3750.38
Measured
Equilibrium Temperature
Unknown
Parameter source: Stefánsson et al. 2025
Orbital Period
571.300+1.400−1.300days
Planet Mass (Earth masses)
3750.38+232.01−209.77
Planet Mass (Jupiter masses)
11.8000+0.7300−0.6600
Eccentricity
0.3380+0.0260−0.0230
Epoch of Periastron
2457386.10+8.50−8.40days(BJD)
Argument of Periastron
180.3+5.5−4.8deg
Radial Velocity Semi-Amplitude
368.00+22.00−18.00m/s
Distance from Earth
73.5 pc (~240 ly)
Spectral Type
Unknown
Temperature
4034 K
Mass (Solar)
0.64 M☉
Radius (Solar)
0.62 R☉
Luminosity
-1.00 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
209.5064°, 31.6955°
Discovery Method
Astrometry
Discovery Year
2025
Source ID: Gaia-4 b
Gaia-4 b orbits Gaia-4 and was reported in 2025 and was detected with the Astrometry method.
Published measurements list a mass of 3,750.38 Earth masses and an orbital period of 571.3 days.
Catalog data places the system at about 73.5 parsecs from Earth and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open Gaia-4