Exoplanet

LHS 1903 d

Orbiting LHS 1903

Overview

LHS 1903 d is an exoplanet orbiting the star LHS 1903, discovered in 2026 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

2.50

Earth radii

015 R⊕

Mass

5.96

Earth masses

0500 M⊕

Orbital Period

12.6

days

0.1d10,000d

Distance

35.7

parsecs

Nearby10,000 pc

Equilibrium Temp

442

K

150 K3,500 K

Radius (Earth radii)

2.50

Mass (Earth masses)

5.96

Measured

Equilibrium Temperature

442 K

Orbital Period

12.57 days

Distance from Earth

35.7 pc (~116 ly)

Spectral Type

M

Temperature

3664 K

Mass (Solar)

0.54 M☉

Radius (Solar)

0.54 R☉

Luminosity

Unknown

Planets in System

4

Stars in System

1

Coordinates (RA, Dec)

107.8658°, 48.3279°

Discovery Method

Transit

Discovery Year

2026

Data Sources

Source ID: LHS 1903 d

System Context

LHS 1903 d orbits LHS 1903 and was reported in 2026 and was detected with the Transit method.

Published measurements list a radius of 2.5 Earth radii, a mass of 5.96 Earth masses, an orbital period of 12.57 days, and an equilibrium temperature near 442 K.

Catalog data places the system at about 35.7 parsecs from Earth, a host star classified as M, and 4 known planets in the system.

Host star

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

Open LHS 1903

More planets in this system

LHS 1903 d