Star · K9V
TOI-4559
TOI-4559 is a main-sequence star of spectral type K9V in the constellation Hydra, 103.1 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Hydra |
|---|---|
| Distance | 103.1 light-years (31.6 pc) |
| Apparent magnitude | magnitude 13.12 |
| Absolute magnitude | magnitude 10.62 |
| Spectral type | K9V |
| Surface temperature | 3,560 K |
| Luminosity | 0.0203 L☉ |
| Radius | 0.374 R☉ |
| Mass | 0.392 M☉ |
| Age | 7.0 billion years |
| Metallicity [Fe/H] | -0.09 |
| Right ascension (J2000) | 14h 04m 03.3s |
| Declination (J2000) | −30° 00′ 51″ |
| Space velocity (relative to the Sun) | 37.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.12. Visible from the whole Southern Hemisphere and north to latitude 60° N. South of latitude 60° S it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1923. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around TOI-4559, the Sun would look like a star of magnitude 7.33, in the direction where our sky has the constellation Triangulum. It would be invisible to the naked eye.
Planets
- TOI-4559 b 3.97-day orbit · 1.42 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 68462 3.65 light-years
- π Hya 6.63 light-years
- GJ 3807B 12.6 light-years
- PSO J218.5616-27.8952 12.6 light-years
- GJ 3806A 13.4 light-years
- GJ 3819 13.7 light-years
- 2MASS J13411160-3052505 15.8 light-years
- HIP 66486 16.2 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.