Exoplanet

HD 187123 c

Orbiting HD 187123

Overview

HD 187123 c is an exoplanet orbiting the star HD 187123, discovered in 2008 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

632.46

Earth masses

0500 M⊕

Orbital Period

3810.0

days

0.1d10,000d

Distance

46.0

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

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

632.46

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Wright et al. 2009

Orbital Period

3810.000+420.000420.000days

Semi-Major Axis

4.8900+0.53000.5300au

M sin(i) (Earth masses)

632.46+79.4579.45

M sin(i) (Jupiter masses)

1.9900+0.25000.2500

Eccentricity

0.2520+0.03300.0330

Epoch of Periastron

2453580.04+0.300.30days

Argument of Periastron

243.0+19.019.0deg

Radial Velocity Semi-Amplitude

25.50+1.501.50m/s

Distance from Earth

46.0 pc (~150 ly)

Spectral Type

Unknown

Temperature

5790 K

Mass (Solar)

1.04 M☉

Radius (Solar)

1.15 R☉

Luminosity

0.13 log L☉

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

296.7429°, 34.4190°

Discovery Method

Radial Velocity

Discovery Year

2008

Data Sources

Source ID: HD 187123 c

System Context

HD 187123 c orbits HD 187123 and was reported in 2008 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 632.46 Earth masses (M sin i) and an orbital period of 3,810 days.

Catalog data places the system at about 46 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 187123

More planets in this system

HD 187123 c