Exoplanet

HD 332231 b

Orbiting HD 332231

Overview

HD 332231 b is an exoplanet orbiting the star HD 332231, discovered in 2020 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

9.07

Earth radii

015 R⊕

Mass

74.10

Earth masses

0500 M⊕

Orbital Period

18.7

days

0.1d10,000d

Distance

80.7

parsecs

Nearby10,000 pc

Equilibrium Temp

798

K

150 K3,500 K

Radius (Earth radii)

9.07

Mass (Earth masses)

74.10

Measured

Equilibrium Temperature

798 K

Parameter source: Polanski et al. 2024

Orbital Period

18.712+0.000−0.000days

Semi-Major Axis

0.1450+0.0030−0.0030au

Planet Mass (Earth masses)

74.10+5.60−5.40

Planet Mass (Jupiter masses)

0.2331+0.0176−0.0170

Eccentricity

0.0000

Argument of Periastron

2.0+50.0−50.0deg

Radial Velocity Semi-Amplitude

16.00+1.00−1.00m/s

Distance from Earth

80.7 pc (~263 ly)

Spectral Type

Unknown

Temperature

6128 K

Mass (Solar)

1.16 M☉

Radius (Solar)

1.27 R☉

Luminosity

0.31 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

306.7411°, 33.7444°

Discovery Method

Transit

Discovery Year

2020

Data Sources
NASA Exoplanet Archive

Source ID: HD 332231 b

System Context

HD 332231 b orbits HD 332231 and was reported in 2020 and was detected with the Transit method.

Published measurements list a radius of 9.07 Earth radii, a mass of 74.1 Earth masses, an orbital period of 18.71 days, and an equilibrium temperature near 798 K.

Catalog data places the system at about 80.7 parsecs from Earth 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 332231