Ross 176 b
Orbiting Ross 176
Ross 176 b is an exoplanet orbiting the star Ross 176, discovered in 2025 using the Transit method. It is a Super-Earth world.
Radius
1.84
Earth radii
Mass
4.57
Earth masses
Orbital Period
5.0
days
Distance
46.4
parsecs
Equilibrium Temp
682
K
Radius (Earth radii)
1.84
Mass (Earth masses)
4.57
Measured
Equilibrium Temperature
682 K
Parameter source: Geraldía-González et al. 2025
Orbital Period
5.007+0.000−0.000days
Semi-Major Axis
0.0464+0.0012−0.0010au
Planet Mass (Earth masses)
4.57+0.89−0.93
Planet Mass (Jupiter masses)
0.0144+0.0028−0.0029
Eccentricity
0.2500+0.0400−0.0400
Argument of Periastron
101.0+19.0−23.0deg
Radial Velocity Semi-Amplitude
2.55+0.48−0.51m/s
Distance from Earth
46.4 pc (~151 ly)
Spectral Type
K7 V
Temperature
4041 K
Mass (Solar)
0.58 M☉
Radius (Solar)
0.57 R☉
Luminosity
-1.11 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
305.6897°, 47.3086°
Discovery Method
Transit
Discovery Year
2025
Source ID: Ross 176 b
Ross 176 b orbits Ross 176 and was reported in 2025 and was detected with the Transit method.
Published measurements list a radius of 1.84 Earth radii, a mass of 4.57 Earth masses, an orbital period of 5.01 days, and an equilibrium temperature near 682 K.
Catalog data places the system at about 46.4 parsecs from Earth, a host star classified as K7 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 176