Exoplanet

LHS 1140 c

Orbiting LHS 1140

Overview

LHS 1140 c is an exoplanet orbiting the star LHS 1140, discovered in 2018 using the Transit method. It is a Earth-sized world.

Key Measurements

Radius

1.27

Earth radii

015 R⊕

Mass

1.91

Earth masses

0500 M⊕

Orbital Period

3.8

days

0.1d10,000d

Distance

15.0

parsecs

Nearby10,000 pc

Equilibrium Temp

422

K

150 K3,500 K

Radius (Earth radii)

1.27

Mass (Earth masses)

1.91

Measured

Equilibrium Temperature

422 K

Orbital Period

3.78 days

Distance from Earth

15.0 pc (~49 ly)

Spectral Type

M4.5 V

Temperature

3096 K

Mass (Solar)

0.18 M☉

Radius (Solar)

0.22 R☉

Luminosity

-2.42 log L☉

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

11.2486°, -15.2741°

Discovery Method

Transit

Discovery Year

2018

Data Sources
NASA Exoplanet Archive

Source ID: LHS 1140 c

System Context

LHS 1140 c orbits LHS 1140 and was reported in 2018 and was detected with the Transit method.

Published measurements list a radius of 1.27 Earth radii, a mass of 1.91 Earth masses, an orbital period of 3.78 days, and an equilibrium temperature near 422 K.

Catalog data places the system at about 15 parsecs from Earth, a host star classified as M4.5 V, and 2 known planets in the system.

Host star

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

Open LHS 1140

More planets in this system

LHS 1140 b