Exoplanet

AU Mic b

Orbiting AU Mic

Overview

AU Mic b is an exoplanet orbiting the star AU Mic, discovered in 2020 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

4.79

Earth radii

015 R⊕

Mass

8.99

Earth masses

0500 M⊕

Orbital Period

8.5

days

0.1d10,000d

Distance

9.7

parsecs

Nearby10,000 pc

Equilibrium Temp

555

K

150 K3,500 K

Radius (Earth radii)

4.79

Mass (Earth masses)

8.99

Measured

Equilibrium Temperature

555 K

Orbital Period

8.46 days

Distance from Earth

9.7 pc (~32 ly)

Spectral Type

M1 V

Temperature

3540 K

Mass (Solar)

0.64 M☉

Radius (Solar)

0.86 R☉

Luminosity

-0.98 log L☉

Planets in System

4

Stars in System

1

Coordinates (RA, Dec)

311.2911°, -31.3424°

Discovery Method

Transit

Discovery Year

2020

Data Sources

Source ID: AU Mic b

System Context

AU Mic b orbits AU Mic and was reported in 2020 and was detected with the Transit method.

Published measurements list a radius of 4.79 Earth radii, a mass of 8.99 Earth masses, an orbital period of 8.46 days, and an equilibrium temperature near 555 K.

Catalog data places the system at about 9.7 parsecs from Earth, a host star classified as M1 V, 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 AU Mic

More planets in this system