Exoplanet

GJ 876 d

Orbiting GJ 876

Overview

GJ 876 d is an exoplanet orbiting the star GJ 876, discovered in 2005 using the Radial Velocity method.

Key Measurements

Mass

6.83

Earth masses

0500 M⊕

Orbital Period

1.9

days

0.1d10,000d

Distance

4.7

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

Mass (Earth masses)

6.83

Measured

Equilibrium Temperature

Unknown

Parameter source: Rivera et al. 2010

Orbital Period

1.938+0.0000.000days

Semi-Major Axis

0.0208+0.00000.0000au

Planet Mass (Earth masses)

6.83+0.400.40

Planet Mass (Jupiter masses)

0.0210+0.00100.0010

Eccentricity

0.2070+0.05500.0550

Epoch of Periastron

2450602.09days

Argument of Periastron

234.0+20.020.0deg

Radial Velocity Semi-Amplitude

6.56+0.370.37m/s

Distance from Earth

4.7 pc (~15 ly)

Spectral Type

Unknown

Temperature

Unknown

Mass (Solar)

0.32 M☉

Radius (Solar)

0.30 R☉

Luminosity

-1.91 log L☉

Planets in System

4

Stars in System

1

Coordinates (RA, Dec)

343.3240°, -14.2666°

Discovery Method

Radial Velocity

Discovery Year

2005

Data Sources

Source ID: GJ 876 d

System Context

GJ 876 d orbits GJ 876 and was reported in 2005 and was detected with the Radial Velocity method.

Published measurements list a mass of 6.83 Earth masses and an orbital period of 1.94 days.

Catalog data places the system at about 4.7 parsecs from Earth and 4 known planets in the system.

Host star

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

Open GJ 876

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