Exoplanet

HD 22946 d

Orbiting HD 22946

Overview

HD 22946 d is an exoplanet orbiting the star HD 22946, discovered in 2023 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.61

Earth radii

015 R⊕

Mass

26.57

Earth masses

0500 M⊕

Orbital Period

47.4

days

0.1d10,000d

Distance

62.8

parsecs

Nearby10,000 pc

Equilibrium Temp

546

K

150 K3,500 K

Radius (Earth radii)

2.61

Mass (Earth masses)

26.57

Measured

Equilibrium Temperature

546 K

Orbital Period

47.42 days

Distance from Earth

62.8 pc (~205 ly)

Spectral Type

Unknown

Temperature

6169 K

Mass (Solar)

1.10 M☉

Radius (Solar)

1.12 R☉

Luminosity

Unknown

Planets in System

3

Stars in System

1

Coordinates (RA, Dec)

54.8195°, -42.7630°

Discovery Method

Transit

Discovery Year

2023

Data Sources

Source ID: HD 22946 d

System Context

HD 22946 d orbits HD 22946 and was reported in 2023 and was detected with the Transit method.

Published measurements list a radius of 2.61 Earth radii, a mass of 26.57 Earth masses, an orbital period of 47.42 days, and an equilibrium temperature near 546 K.

Catalog data places the system at about 62.8 parsecs from Earth 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 22946

More planets in this system