Exoplanet

HD 102117 b

Orbiting HD 102117

Overview

HD 102117 b is an exoplanet orbiting the star HD 102117, discovered in 2005 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

54.03

Earth masses

0500 M⊕

Orbital Period

20.8

days

0.1d10,000d

Distance

39.6

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

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

54.03

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Stassun et al. 2017

Orbital Period

20.813+0.006−0.006days

Semi-Major Axis

0.1500+0.0000−0.0000au

M sin(i) (Earth masses)

54.03+3.18−3.18

M sin(i) (Jupiter masses)

0.1700+0.0100−0.0100

Eccentricity

0.1200+0.0800−0.0800

Radial Velocity Semi-Amplitude

12.00+0.90−0.90m/s

Distance from Earth

39.6 pc (~129 ly)

Spectral Type

Unknown

Temperature

5655 K

Mass (Solar)

1.06 M☉

Radius (Solar)

1.23 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

176.2097°, -58.7040°

Discovery Method

Radial Velocity

Discovery Year

2005

Data Sources
NASA Exoplanet Archive

Source ID: HD 102117 b

System Context

HD 102117 b orbits HD 102117 and was reported in 2005 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 54.03 Earth masses (M sin i) and an orbital period of 20.81 days.

Catalog data places the system at about 39.6 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 102117