Star · M1 V

TOI-663

TOI-663 is a main-sequence star of spectral type M1 V in the constellation Sextans, 208.5 light-years from the Sun. It is orbited by 3 confirmed exoplanet(s).

Constellation	Sextans
Distance	208.5 light-years (63.9 pc)
Apparent magnitude	magnitude 13.64
Absolute magnitude	magnitude 9.61
Spectral type	M1 V
Surface temperature	3,680 K
Luminosity	0.0426 L☉
Radius	0.512 R☉
Mass	0.514 M☉
Metallicity [Fe/H]	0.07
Right ascension (J2000)	10h 40m 15.8s
Declination (J2000)	−8° 30′ 40″
Space velocity (relative to the Sun)	59.8 km/s

In the sky

A telescope is needed to see it: its apparent magnitude is 13.64. Visible from the whole Southern Hemisphere and north to latitude 81° N. It stands highest at midnight in February, the best time to observe it.

Through a telescope from Earth

Light's journey

The light you see tonight set out around the year 1817. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.7 million years.

The Sun seen from there

From a planet around TOI-663, the Sun would look like a star of magnitude 8.86, in the direction where our sky has the constellation Pegasus. It would be invisible to the naked eye.

Planets

TOI-663 b 2.6-day orbit · 2.27 R⊕
TOI-663 c 4.7-day orbit · 2.26 R⊕
TOI-663 d 7.1-day orbit · 1.92 R⊕

Neighbours

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

HIP 51907 8.52 light-years
HIP 52626 9.93 light-years
HIP 52682 12.6 light-years
SIMP J10414238-0429259 15.8 light-years
HIP 50796 19.4 light-years
HIP 50747 19.7 light-years

Open in the simulation

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