Exoplanet

HD 27442 b

Orbiting HD 27442

Overview

HD 27442 b is an exoplanet orbiting the star HD 27442, discovered in 2000 using the Radial Velocity method.

Key Measurements

Minimum Mass (M sin i)

495.80

Earth masses

0500 M⊕

Orbital Period

428.1

days

0.1d10,000d

Distance

18.3

parsecs

Nearby10,000 pc

Radius (Earth radii)

Unknown

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

495.80

Radial-velocity minimum

Equilibrium Temperature

Unknown

Parameter source: Butler et al. 2006

Orbital Period

428.100+1.1001.100days

Semi-Major Axis

1.2710+0.07300.0730au

M sin(i) (Earth masses)

495.80+44.5044.50

M sin(i) (Jupiter masses)

1.5600+0.14000.1400

Eccentricity

0.0600+0.04300.0430

Epoch of Periastron

2450836.00+55.0055.00days

Argument of Periastron

216.0deg

Radial Velocity Semi-Amplitude

32.20+1.401.40m/s

Distance from Earth

18.3 pc (~60 ly)

Spectral Type

Unknown

Temperature

4846 K

Mass (Solar)

1.23 M☉

Radius (Solar)

Unknown

Luminosity

Unknown

Planets in System

1

Stars in System

2

Coordinates (RA, Dec)

64.1205°, -59.3029°

Discovery Method

Radial Velocity

Discovery Year

2000

Data Sources

Source ID: HD 27442 b

System Context

HD 27442 b orbits HD 27442 and was reported in 2000 and was detected with the Radial Velocity method.

Published measurements list a minimum mass of 495.8 Earth masses (M sin i) and an orbital period of 428.1 days.

Catalog data places the system at about 18.3 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 27442
HD 27442 b