Exoplanet

HD 121504 b

Orbiting HD 121504

Overview

HD 121504 b is an exoplanet orbiting the star HD 121504, discovered in 2003 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

479.92

Earth masses

0500 M⊕

Orbital Period

63.3

days

0.1d10,000d

Distance

41.7

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

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

479.92

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Stassun et al. 2017

Orbital Period

63.330+0.030−0.030days

Semi-Major Axis

0.3300+0.0100−0.0100au

M sin(i) (Earth masses)

479.92+41.32−41.32

M sin(i) (Jupiter masses)

1.5100+0.1300−0.1300

Eccentricity

0.0300+0.0100−0.0100

Radial Velocity Semi-Amplitude

55.80+0.90−0.90m/s

Distance from Earth

41.7 pc (~136 ly)

Spectral Type

Unknown

Temperature

6027 K

Mass (Solar)

1.62 M☉

Radius (Solar)

1.07 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

209.3199°, -56.0404°

Discovery Method

Radial Velocity

Discovery Year

2003

Data Sources
NASA Exoplanet Archive

Source ID: HD 121504 b

System Context

HD 121504 b orbits HD 121504 and was reported in 2003 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 479.92 Earth masses (M sin i) and an orbital period of 63.33 days.

Catalog data places the system at about 41.7 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 121504