Star · M1 V

AU Mic

AU Mic is a main-sequence star of spectral type M1 V in the constellation Microscopium, 31.7 light-years from the Sun. It is orbited by 4 confirmed exoplanet(s).

Other names	Gl 803 · HIP 102409
Constellation	Microscopium
Distance	31.7 light-years (9.71 pc)
Apparent magnitude	magnitude 8.81
Absolute magnitude	magnitude 8.87
Spectral type	M1 V
Surface temperature	3,540 K
Luminosity	0.105 L☉
Radius	0.862 R☉
Mass	0.635 M☉
Age	0.0 billion years
Metallicity [Fe/H]	0.01
Right ascension (J2000)	20h 45m 09.5s
Declination (J2000)	−31° 20′ 28″
Space velocity (relative to the Sun)	22.1 km/s

In the sky

Too faint for the naked eye (magnitude 8.81); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 59° N. South of latitude 59° S it never sets. It stands highest at midnight in July, the best time to observe it.

Through a telescope from Earth

Light's journey

The light you see tonight set out around the year 1994. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 562 thousand years.

The Sun seen from there

From a planet around AU Mic, the Sun would look like a star of magnitude 4.77, in the direction where our sky has the constellation Cancer. It would be visible to the naked eye.

Planets

AU Mic b 8.46-day orbit · 4.79 R⊕
AU Mic c 18.9-day orbit · 2.79 R⊕
AU Mic d 12.7-day orbit · 1.02 R⊕
AU Mic e 33.1-day orbit · 4.87 R⊕

Neighbours

Its nearest neighbours in the catalogue (within 20 light-years):

Gl 799B 0.78 light-years
Gl 799A 0.99 light-years
HD 192310 5.06 light-years
WISE J210200.15-442919.5 8.58 light-years
WISEPA J195905.66-333833.7 9.43 light-years
GJ 4207 10.5 light-years
WISEA J193054.55-205949.4 10.6 light-years
GJ 4248 10.6 light-years

Open in the simulation

Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.