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AU Mic b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/AU Mic b

Confirmed exoplanet · Neptune Like

AU Mic b

Orbiting AU Mic

Discovered in 2020 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of AU Mic b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,020
Method: Transit
Radius: 4.79 R⊕
Mass: 8.99 M⊕
Orbit: 8.463446 days
Distance: 9.7221 pc

Planet profile

Orbit and physical properties

Orbital period: 8.463446 days
Semi-major axis: 0.07 AU
Eccentricity: 0.07
Radius: 4.79 Earth radii
Mass: 8.99 Earth masses
Mass provenance: Mass
Density: 0.49 g/cm³
Equilibrium temperature: 554.8 K
Insolation: 21.2 Earth flux

Host system

Star and system properties

Host star: AU Mic
Stars in system: 1
Known planets in system: 4
Spectral type: M1 V
Stellar temperature: 3,540 K
Stellar radius: 0.862 R☉
Stellar mass: 0.635 M☉
Stellar metallicity: 0.01 dex
Stellar age: 0.019 Gyr
Distance: 9.7221 parsecs
Right ascension: 20h45m09.87s
Declination: -31d20m32.82s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,020
Publication date: 2020-06
Discovery locale: Space
Facility: Transiting Exoplanet Survey Satellite (TESS)
Telescope: 0.1 m TESS Telescope
Instrument: TESS CCD Array
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from AU Mic b.

Generic neptune like catalog artwork; not a direct image of AU Mic b — Apex Andromeda catalog artwork