Exoplanet

HD 82943 b

Orbiting HD 82943

Overview

HD 82943 b is an exoplanet orbiting the star HD 82943, discovered in 2003 using the Radial Velocity method.

Key Measurements

Mass

534.25

Earth masses

0500 M⊕

Orbital Period

441.5

days

0.1d10,000d

Distance

27.6

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

Mass (Earth masses)

534.25

Measured

Equilibrium Temperature

Unknown

Parameter source: Baluev & Beaugé 2014

Orbital Period

441.470+0.350−0.350days

Semi-Major Axis

1.1831+0.0006−0.0006au

Planet Mass (Earth masses)

534.25+8.90−8.90

Planet Mass (Jupiter masses)

1.6810+0.0280−0.0280

Eccentricity

0.1620+0.0360−0.0360

Argument of Periastron

300.9+3.4−3.4deg

Radial Velocity Semi-Amplitude

41.91+0.77−0.77m/s

Distance from Earth

27.6 pc (~90 ly)

Spectral Type

Unknown

Temperature

5935 K

Mass (Solar)

1.08 M☉

Radius (Solar)

1.18 R☉

Luminosity

0.19 log L☉

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

143.7114°, -12.1303°

Discovery Method

Radial Velocity

Discovery Year

2003

Data Sources
NASA Exoplanet Archive

Source ID: HD 82943 b

System Context

HD 82943 b orbits HD 82943 and was reported in 2003 and was detected with the Radial Velocity method.

Published measurements list a mass of 534.25 Earth masses and an orbital period of 441.47 days.

Catalog data places the system at about 27.6 parsecs from Earth and 2 known planets in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open HD 82943

More planets in this system

HD 82943 c