eps Eri b
Orbiting eps Eri
eps Eri b is an exoplanet orbiting the star eps Eri, discovered in 2000 using the Radial Velocity method.
Mass
317.83
Earth masses
Orbital Period
2680.0
days
Distance
3.2
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
317.83
Measured
Equilibrium Temperature
Unknown
Parameter source: Thompson et al. 2025
Orbital Period
2680.000+30.000−30.000days
Semi-Major Axis
3.5300+0.0400−0.0400au
Planet Mass (Earth masses)
317.83+31.78−31.78
Planet Mass (Jupiter masses)
1.0000+0.1000−0.1000
Eccentricity
0.0600+0.0600−0.0400
Epoch of Periastron
2458017.50+1740.00−447.00days(JD)
Argument of Periastron
268.0+62.0−105.0deg
Distance from Earth
3.2 pc (~10 ly)
Spectral Type
Unknown
Temperature
Unknown
Mass (Solar)
0.82 M☉
Radius (Solar)
Unknown
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
53.2284°, -9.4582°
Discovery Method
Radial Velocity
Discovery Year
2000
Source ID: eps Eri b
eps Eri b orbits eps Eri and was reported in 2000 and was detected with the Radial Velocity method.
Published measurements list a mass of 317.83 Earth masses and an orbital period of 2,680 days.
Catalog data places the system at about 3.2 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 eps Eri