Exoplanet

HD 155193 b

Orbiting HD 155193

Overview

HD 155193 b is an exoplanet orbiting the star HD 155193, discovered in 2021 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

238.37

Earth masses

0500 M⊕

Orbital Period

352.6

days

0.1d10,000d

Distance

57.8

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

Minimum Mass, M sin(i) (Earth masses)

238.37

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Dalal et al. 2021

Orbital Period

352.650+2.5802.580days

Semi-Major Axis

1.0400+0.04000.0400au

M sin(i) (Earth masses)

238.37+19.0719.07

M sin(i) (Jupiter masses)

0.7500+0.06000.0600

Eccentricity

0.2100+0.08000.0800

Argument of Periastron

62.9+136.2136.2deg

Radial Velocity Semi-Amplitude

19.51+1.421.42m/s

Distance from Earth

57.8 pc (~189 ly)

Spectral Type

F8 IV

Temperature

6239 K

Mass (Solar)

1.22 M☉

Radius (Solar)

Unknown

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

257.4209°, 10.0381°

Discovery Method

Radial Velocity

Discovery Year

2021

Data Sources

Source ID: HD 155193 b

System Context

HD 155193 b orbits HD 155193 and was reported in 2021 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 238.37 Earth masses (M sin i) and an orbital period of 352.65 days.

Catalog data places the system at about 57.8 parsecs from Earth, a host star classified as F8 IV, 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 155193