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