Exoplanet

HD 155918 c

Orbiting HD 155918

Overview

HD 155918 c is an exoplanet orbiting the star HD 155918, discovered in 2022 using the Radial Velocity method.

Key Measurements

Mass

1878.05

Earth masses

0500 M⊕

Orbital Period

17202.2

days

0.1d10,000d

Distance

27.6

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

Mass (Earth masses)

1878.05

Measured

Equilibrium Temperature

Unknown

Parameter source: Feng et al. 2022

Orbital Period

17202.194+2100.7911950.035days

Semi-Major Axis

13.1830+1.17001.1790au

Planet Mass (Earth masses)

1878.05+207.54243.46

Planet Mass (Jupiter masses)

5.9090+0.65300.7660

Eccentricity

0.0710+0.05100.0530

Epoch of Periastron

2435237.92+16765.08999.61days(BJD)

Argument of Periastron

182.7+20.522.8deg

Radial Velocity Semi-Amplitude

24.02+1.311.68m/s

Distance from Earth

27.6 pc (~90 ly)

Spectral Type

Unknown

Temperature

Unknown

Mass (Solar)

1.03 M☉

Radius (Solar)

Unknown

Luminosity

Unknown

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

260.5364°, -75.3492°

Discovery Method

Radial Velocity

Discovery Year

2022

Data Sources

Source ID: HD 155918 c

System Context

HD 155918 c orbits HD 155918 and was reported in 2022 and was detected with the Radial Velocity method.

Published measurements list a mass of 1,878.05 Earth masses and an orbital period of 17,202.19 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 155918

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