Exoplanet

HD 231701 b

Orbiting HD 231701

Overview

HD 231701 b is an exoplanet orbiting the star HD 231701, discovered in 2007 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

359.15

Earth masses

0500 M⊕

Orbital Period

141.6

days

0.1d10,000d

Distance

108.9

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

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

359.15

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Ment et al. 2018

Orbital Period

141.630+0.0670.067days

Semi-Major Axis

0.5670+0.05300.0530au

M sin(i) (Earth masses)

359.15+79.4679.46

M sin(i) (Jupiter masses)

1.1300+0.25000.2500

Eccentricity

0.1300+0.03200.0320

Epoch of Periastron

2463330.60+5.305.30days(JD)

Argument of Periastron

68.0+14.014.0deg

Radial Velocity Semi-Amplitude

39.20+1.201.20m/s

Distance from Earth

108.9 pc (~355 ly)

Spectral Type

F8 V

Temperature

6101 K

Mass (Solar)

1.21 M☉

Radius (Solar)

1.53 R☉

Luminosity

0.47 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

293.0176°, 16.4744°

Discovery Method

Radial Velocity

Discovery Year

2007

Data Sources

Source ID: HD 231701 b

System Context

HD 231701 b orbits HD 231701 and was reported in 2007 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 359.15 Earth masses (M sin i) and an orbital period of 141.63 days.

Catalog data places the system at about 108.9 parsecs from Earth, a host star classified as F8 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 231701
HD 231701 b