Star · M3 V
TOI-789
TOI-789 is a main-sequence star of spectral type M3 V in the constellation Volans, 141.7 light-years from the Sun. It is orbited by 3 confirmed exoplanet(s).
| Constellation | Volans |
|---|---|
| Distance | 141.7 light-years (43.4 pc) |
| Apparent magnitude | magnitude 14.22 |
| Absolute magnitude | magnitude 11.03 |
| Spectral type | M3 V |
| Surface temperature | 3,470 K |
| Luminosity | 0.0178 L☉ |
| Radius | 0.371 R☉ |
| Mass | 0.358 M☉ |
| Metallicity [Fe/H] | 0.00 |
| Right ascension (J2000) | 7h 41m 04.9s |
| Declination (J2000) | −71° 18′ 13″ |
| Space velocity (relative to the Sun) | 68.9 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.22. Visible from the whole Southern Hemisphere and north to latitude 19° N. South of latitude 19° S it never sets. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1884. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.5 million years.
The Sun seen from there
From a planet around TOI-789, the Sun would look like a star of magnitude 8.02, in the direction where our sky has the constellation Draco. It would be invisible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.