Ross 508 b
Orbiting Ross 508
Ross 508 b is an exoplanet orbiting the star Ross 508, discovered in 2022 using the Radial Velocity method.
Minimum Mass (M sin i)
4.00
Earth masses
Orbital Period
10.8
days
Distance
11.2
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
4.00
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Harakawa et al. 2022
Orbital Period
10.770+0.010−0.010days
Semi-Major Axis
0.0537+0.0006−0.0005au
M sin(i) (Earth masses)
4.00+0.53−0.55
M sin(i) (Jupiter masses)
0.0126+0.0017−0.0017
Eccentricity
0.3300+0.1300−0.1500
Epoch of Periastron
2459370.24+0.64−0.71days(BJD-TDB)
Argument of Periastron
-37.0+22.0−28.0deg
Radial Velocity Semi-Amplitude
3.92+0.60−0.58m/s
Distance from Earth
11.2 pc (~37 ly)
Spectral Type
M4.5 V
Temperature
3071 K
Mass (Solar)
0.18 M☉
Radius (Solar)
0.21 R☉
Luminosity
-2.45 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
230.9613°, 17.4605°
Discovery Method
Radial Velocity
Discovery Year
2022
Source ID: Ross 508 b
Ross 508 b orbits Ross 508 and was reported in 2022 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 4 Earth masses (M sin i) and an orbital period of 10.77 days.
Catalog data places the system at about 11.2 parsecs from Earth, a host star classified as M4.5 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 Ross 508