HD 5388 b
Orbiting HD 5388
HD 5388 b is an exoplanet orbiting the star HD 5388, discovered in 2010 using the Radial Velocity method.
Mass
1017.05
Earth masses
Orbital Period
772.5
days
Distance
53.1
parsecs
Radius (Earth radii)
Unknown
Mass (Earth masses)
1017.05
Measured
Equilibrium Temperature
Unknown
Parameter source: Piccinini et al. 2026
Orbital Period
772.500+1.000−1.000days
Semi-Major Axis
1.7570+0.0010−0.0010au
Planet Mass (Earth masses)
1017.05+95.35−63.57
Planet Mass (Jupiter masses)
3.2000+0.3000−0.2000
Eccentricity
0.4100+0.0200−0.0200
Epoch of Periastron
2458432.00+24.00−23.00days(BJD)
Argument of Periastron
325.9+2.8−2.7deg
Radial Velocity Semi-Amplitude
42.70+1.40−1.30m/s
Distance from Earth
53.1 pc (~173 ly)
Spectral Type
F6 V
Temperature
6297 K
Mass (Solar)
1.21 M☉
Radius (Solar)
1.91 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
13.7990°, -47.4067°
Discovery Method
Radial Velocity
Discovery Year
2010
Source ID: HD 5388 b
HD 5388 b orbits HD 5388 and was reported in 2010 and was detected with the Radial Velocity method.
Published measurements list a mass of 1,017.05 Earth masses and an orbital period of 772.5 days.
Catalog data places the system at about 53.1 parsecs from Earth, a host star classified as F6 V, 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 HD 5388