Star · K0 V
TOI-757
TOI-757 is a main-sequence star of spectral type K0 V in the constellation Centaurus, 196.7 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Centaurus |
|---|---|
| Distance | 196.7 light-years (60.3 pc) |
| Apparent magnitude | magnitude 9.83 |
| Absolute magnitude | magnitude 5.93 |
| Spectral type | K0 V |
| Surface temperature | 5,280 K |
| Luminosity | 0.42 L☉ |
| Radius | 0.78 R☉ |
| Mass | 0.8 M☉ |
| Age | 7.5 billion years |
| Metallicity [Fe/H] | -0.27 |
| Right ascension (J2000) | 12h 31m 58.7s |
| Declination (J2000) | −35° 33′ 18″ |
| Space velocity (relative to the Sun) | 34.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.83. Visible from the whole Southern Hemisphere and north to latitude 54° N. South of latitude 54° S it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1829. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.5 million years.
The Sun seen from there
From a planet around TOI-757, the Sun would look like a star of magnitude 8.73, in the direction where our sky has the constellation Andromeda. It would be invisible to the naked eye.
Planets
- TOI-757 b 17.5-day orbit · 2.5 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 60104 11.5 light-years
- HIP 61863 11.8 light-years
- HIP 61382 12.8 light-years
- HIP 62127 13.4 light-years
- HIP 60317 16.3 light-years
- HIP 60007 17.2 light-years
- HIP 60756 19.5 light-years
- HIP 59077 19.6 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.