Exoplanet

HD 28109 d

Orbiting HD 28109

Overview

HD 28109 d is an exoplanet orbiting the star HD 28109, discovered in 2022 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

3.11

Earth radii

015 R⊕

Mass

5.80

Earth masses

0500 M⊕

Orbital Period

84.3

days

0.1d10,000d

Distance

139.6

parsecs

Nearby10,000 pc

Equilibrium Temp

561

K

150 K3,500 K

Radius (Earth radii)

3.11

Mass (Earth masses)

5.80

Measured

Equilibrium Temperature

561 K

Orbital Period

84.29 days

Distance from Earth

139.6 pc (~455 ly)

Spectral Type

F8

Temperature

6189 K

Mass (Solar)

1.23 M☉

Radius (Solar)

1.43 R☉

Luminosity

0.43 log L☉

Planets in System

3

Stars in System

1

Coordinates (RA, Dec)

65.2383°, -68.1027°

Discovery Method

Transit

Discovery Year

2022

Data Sources

Source ID: HD 28109 d

System Context

HD 28109 d orbits HD 28109 and was reported in 2022 and was detected with the Transit method.

Published measurements list a radius of 3.11 Earth radii, a mass of 5.8 Earth masses, an orbital period of 84.29 days, and an equilibrium temperature near 561 K.

Catalog data places the system at about 139.6 parsecs from Earth, a host star classified as F8, and 3 known planets in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open HD 28109

More planets in this system