Exoplanet

LP 791-18 d

Orbiting LP 791-18

Overview

LP 791-18 d is an exoplanet orbiting the star LP 791-18, discovered in 2023 using the Transit method. It is a Earth-sized world.

Key Measurements

Radius

1.03

Earth radii

015 R⊕

Mass

0.91

Earth masses

0500 M⊕

Orbital Period

2.8

days

0.1d10,000d

Distance

26.5

parsecs

Nearby10,000 pc

Radius (Earth radii)

1.03

Mass (Earth masses)

0.91

Measured

Equilibrium Temperature

Unknown

Parameter source: Greklek-McKeon et al. 2025

Orbital Period

2.755+0.0000.000days

Semi-Major Axis

0.0199+0.00020.0002au

Planet Mass (Earth masses)

0.91+0.190.19

Planet Mass (Jupiter masses)

0.0029+0.00060.0006

Eccentricity

0.0011+0.00100.0008

Distance from Earth

26.5 pc (~86 ly)

Spectral Type

M(6.1 +/- 0.7) V

Temperature

2960 K

Mass (Solar)

0.14 M☉

Radius (Solar)

0.18 R☉

Luminosity

-2.64 log L☉

Planets in System

3

Stars in System

1

Coordinates (RA, Dec)

165.6905°, -16.4064°

Discovery Method

Transit

Discovery Year

2023

Data Sources

Source ID: LP 791-18 d

System Context

LP 791-18 d orbits LP 791-18 and was reported in 2023 and was detected with the Transit method.

Published measurements list a radius of 1.03 Earth radii, a mass of 0.91 Earth masses, and an orbital period of 2.75 days.

Catalog data places the system at about 26.5 parsecs from Earth, a host star classified as M(6.1 +/- 0.7) V, 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 LP 791-18

More planets in this system