Exoplanet

HD 40979 b

Orbiting HD 40979

Overview

HD 40979 b is an exoplanet orbiting the star HD 40979, discovered in 2002 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

1484.27

Earth masses

0500 M⊕

Orbital Period

264.1

days

0.1d10,000d

Distance

34.1

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

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

1484.27

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Stassun et al. 2017

Orbital Period

264.150+0.230−0.230days

Semi-Major Axis

0.8500+0.0100−0.0100au

M sin(i) (Earth masses)

1484.27+108.06−108.06

M sin(i) (Jupiter masses)

4.6700+0.3400−0.3400

Eccentricity

0.2500+0.0100−0.0100

Radial Velocity Semi-Amplitude

119.40+2.20−2.20m/s

Distance from Earth

34.1 pc (~111 ly)

Spectral Type

Unknown

Temperature

6165 K

Mass (Solar)

1.45 M☉

Radius (Solar)

1.21 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

3

Coordinates (RA, Dec)

91.1253°, 44.2598°

Discovery Method

Radial Velocity

Discovery Year

2002

Data Sources
NASA Exoplanet Archive

Source ID: HD 40979 b

System Context

HD 40979 b orbits HD 40979 and was reported in 2002 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 1,484.27 Earth masses (M sin i) and an orbital period of 264.15 days.

Catalog data places the system at about 34.1 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 40979