Star · K1/2 V
TOI-444
TOI-444 is a main-sequence star of spectral type K1/2 V in the constellation Eridanus, 187.4 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 19950 |
|---|---|
| Constellation | Eridanus |
| Distance | 187.4 light-years (57.5 pc) |
| Apparent magnitude | magnitude 9.86 |
| Absolute magnitude | magnitude 6.06 |
| Spectral type | K1/2 V |
| Surface temperature | 5,230 K |
| Luminosity | 0.382 L☉ |
| Radius | 0.779 R☉ |
| Mass | 0.96 M☉ |
| Age | 0.6 billion years |
| Metallicity [Fe/H] | 0.08 |
| Right ascension (J2000) | 4h 16m 44.2s |
| Declination (J2000) | −26° 45′ 57″ |
| Space velocity (relative to the Sun) | 32.5 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 9.86. Visible from the whole Southern Hemisphere and north to latitude 63° N. South of latitude 63° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1839. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.3 million years.
The Sun seen from there
From a planet around TOI-444, the Sun would look like a star of magnitude 8.63, in the direction where our sky has the constellation Corona Borealis. It would be invisible to the naked eye.
Planets
- TOI-444 b 18-day orbit · 2.77 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 20347 6.51 light-years
- HIP 20184 9.01 light-years
- HIP 18870 12.1 light-years
- HIP 20509 12.5 light-years
- HIP 21381 17.7 light-years
- HIP 18839 17.8 light-years
- HIP 21632 18.6 light-years
- HIP 19633 19.3 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.