Star · M V
TOI-540
TOI-540 is a main-sequence star of spectral type M V in the constellation Pictor, 45.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Pictor |
|---|---|
| Distance | 45.6 light-years (14.0 pc) |
| Apparent magnitude | magnitude 14.51 |
| Absolute magnitude | magnitude 13.78 |
| Spectral type | M V |
| Surface temperature | 3,220 K |
| Luminosity | 0.00346 L☉ |
| Radius | 0.19 R☉ |
| Mass | 0.159 M☉ |
| Age | 1.1 billion years |
| Right ascension (J2000) | 5h 05m 14.3s |
| Declination (J2000) | −47° 56′ 15″ |
| Space velocity (relative to the Sun) | 4.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.51. Visible from the whole Southern Hemisphere and north to latitude 42° N. South of latitude 42° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1980. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 809 thousand years.
The Sun seen from there
From a planet around TOI-540, the Sun would look like a star of magnitude 5.56, in the direction where our sky has the constellation Hercules. It would be visible to the naked eye.
Planets
- TOI-540 b 1.24-day orbit · 0.903 R⊕
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.