Star · M0V
TOI-2540
TOI-2540 is a main-sequence star of spectral type M0V in the constellation Columba, 62.5 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 25775 |
|---|---|
| Constellation | Columba |
| Distance | 62.5 light-years (19.2 pc) |
| Apparent magnitude | magnitude 9.72 |
| Absolute magnitude | magnitude 8.31 |
| Spectral type | M0V |
| Surface temperature | 4,020 K |
| Luminosity | 0.103 L☉ |
| Radius | 0.661 R☉ |
| Mass | 0.63 M☉ |
| Right ascension (J2000) | 5h 30m 14.0s |
| Declination (J2000) | −42° 41′ 50″ |
| Space velocity (relative to the Sun) | 14.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.72. Visible from the whole Southern Hemisphere and north to latitude 47° N. South of latitude 47° 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 1964. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.1 million years.
The Sun seen from there
From a planet around TOI-2540, the Sun would look like a star of magnitude 6.24, in the direction where our sky has the constellation Hercules. It would be visible to the naked eye.
Planets
- TOI-2540 b 12.7-day orbit · 2.29 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 2MASS J05103520-4208140 4.34 light-years
- HIP 25283 6.85 light-years
- GJ 1084 9.12 light-years
- β Pic 9.89 light-years
- Gl 174.1B 11.1 light-years
- α Cae 11.1 light-years
- WISEPA J052844.51-330823.9 11.5 light-years
- GJ 1079 11.6 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.