Exoplanet

HD 89744 b

Orbiting HD 89744

Overview

HD 89744 b is an exoplanet orbiting the star HD 89744, discovered in 1999 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

2653.88

Earth masses

0500 M⊕

Orbital Period

256.8

days

0.1d10,000d

Distance

38.6

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

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

2653.88

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Wittenmyer et al. 2019

Orbital Period

256.780+0.020−0.020days

Semi-Major Axis

0.9170+0.0090−0.0090au

M sin(i) (Earth masses)

2653.88+57.21−57.21

M sin(i) (Jupiter masses)

8.3500+0.1800−0.1800

Eccentricity

0.6770+0.0030−0.0030

Argument of Periastron

193.7+0.4−0.4deg

Radial Velocity Semi-Amplitude

269.66+1.45−1.45m/s

Distance from Earth

38.6 pc (~126 ly)

Spectral Type

Unknown

Temperature

6291 K

Mass (Solar)

1.86 M☉

Radius (Solar)

Unknown

Luminosity

Unknown

Planets in System

1

Stars in System

2

Coordinates (RA, Dec)

155.5433°, 41.2289°

Discovery Method

Radial Velocity

Discovery Year

1999

Data Sources
NASA Exoplanet Archive

Source ID: HD 89744 b

System Context

HD 89744 b orbits HD 89744 and was reported in 1999 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 2,653.88 Earth masses (M sin i) and an orbital period of 256.78 days.

Catalog data places the system at about 38.6 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 89744