Star · K7 V
TOI-2431
TOI-2431 is a main-sequence star of spectral type K7 V in the constellation Cetus, 117.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 11707 |
|---|---|
| Constellation | Cetus |
| Distance | 117.4 light-years (36.0 pc) |
| Apparent magnitude | magnitude 10.90 |
| Absolute magnitude | magnitude 8.12 |
| Spectral type | K7 V |
| Surface temperature | 4,110 K |
| Luminosity | 0.109 L☉ |
| Radius | 0.651 R☉ |
| Mass | 0.661 M☉ |
| Age | 2.0 billion years |
| Metallicity [Fe/H] | -0.02 |
| Right ascension (J2000) | 2h 31m 03.3s |
| Declination (J2000) | +8° 22′ 55″ |
| Space velocity (relative to the Sun) | 66.7 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 10.90. Visible from the whole Northern Hemisphere and south to latitude 82° S. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1909. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around TOI-2431, the Sun would look like a star of magnitude 7.61, in the direction where our sky has the constellation Virgo. It would be invisible to the naked eye.
Planets
- TOI-2431 b 0.224-day orbit · 1.53 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 11443 2.50 light-years
- HIP 11427 4.44 light-years
- ULAS J024557.88+065359.4 8.16 light-years
- HIP 11182 8.44 light-years
- HIP 10552 8.50 light-years
- 31 Ari 9.77 light-years
- ULAS J022603.18+070231.4 10.5 light-years
- HIP 10599 11.3 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.