HD 28471 b
Orbiting HD 28471
HD 28471 b is an exoplanet orbiting the star HD 28471, discovered in 2025 using the Radial Velocity method.
Minimum Mass (M sin i)
3.72
Earth masses
Orbital Period
3.2
days
Distance
43.6
parsecs
Equilibrium Temp
1377
K
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
3.72
Radial-velocity minimum
Equilibrium Temperature
1377 K
Parameter source: Stevenson et al. 2025
Orbital Period
3.165+0.000−0.000days
Semi-Major Axis
0.0420+0.0010−0.0010au
M sin(i) (Earth masses)
3.72+0.40−0.43
M sin(i) (Jupiter masses)
0.0117+0.0013−0.0014
Eccentricity
0.1950+0.0610−0.0730
Argument of Periastron
152.0+23.0−26.0deg
Radial Velocity Semi-Amplitude
1.68+0.18−0.20m/s
Distance from Earth
43.6 pc (~142 ly)
Spectral Type
G5 V
Temperature
5766 K
Mass (Solar)
0.98 M☉
Radius (Solar)
1.08 R☉
Luminosity
Unknown
Planets in System
3
Stars in System
1
Coordinates (RA, Dec)
66.2875°, -64.0787°
Discovery Method
Radial Velocity
Discovery Year
2025
Source ID: HD 28471 b
HD 28471 b orbits HD 28471 and was reported in 2025 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 3.72 Earth masses (M sin i), an orbital period of 3.16 days, and an equilibrium temperature near 1,377 K.
Catalog data places the system at about 43.6 parsecs from Earth, a host star classified as G5 V, and 3 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HD 28471More planets in this system