Exoplanet

TRAPPIST-1 b

Orbiting TRAPPIST-1

Overview

TRAPPIST-1 b is an exoplanet orbiting the star TRAPPIST-1, discovered in 2016 using the Transit method. It is a Earth-sized world.

Key Measurements

Radius

1.12

Earth radii

015 R⊕

Mass

1.37

Earth masses

0500 M⊕

Orbital Period

1.5

days

0.1d10,000d

Radius (Earth radii)

1.12

Mass (Earth masses)

1.37

Measured

Equilibrium Temperature

Unknown

Orbital Period

1.51 days

Distance from Earth

Unknown

Spectral Type

Unknown

Temperature

2566 K

Mass (Solar)

0.09 M☉

Radius (Solar)

0.12 R☉

Luminosity

-3.26 log L☉

Planets in System

7

Stars in System

1

Coordinates (RA, Dec)

346.6264°, -5.0435°

Discovery Method

Transit

Discovery Year

2016

Data Sources

Source ID: TRAPPIST-1 b

System Context

TRAPPIST-1 b orbits TRAPPIST-1 and was reported in 2016 and was detected with the Transit method.

Published measurements list a radius of 1.12 Earth radii, a mass of 1.37 Earth masses, and an orbital period of 1.51 days.

Catalog data places 7 known planets in the system.

Host star

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

Open TRAPPIST-1