Star · K8V
TOI-904
TOI-904 is a main-sequence star of spectral type K8V in the constellation Mensa, 150.2 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Constellation | Mensa |
|---|---|
| Distance | 150.2 light-years (46.1 pc) |
| Apparent magnitude | magnitude 12.61 |
| Absolute magnitude | magnitude 9.29 |
| Spectral type | K8V |
| Surface temperature | 3,770 K |
| Luminosity | 0.051 L☉ |
| Radius | 0.527 R☉ |
| Mass | 0.557 M☉ |
| Age | 1.5 billion years |
| Metallicity [Fe/H] | 0.02 |
| Right ascension (J2000) | 5h 57m 29.1s |
| Declination (J2000) | −83° 07′ 47″ |
| Space velocity (relative to the Sun) | 25.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.61. Visible from the whole Southern Hemisphere and north to latitude 7° N. South of latitude 7° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1876. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.7 million years.
The Sun seen from there
From a planet around TOI-904, the Sun would look like a star of magnitude 8.15, in the direction where our sky has the constellation Draco. It would be invisible to the naked eye.
Planets
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 23824 5.74 light-years
- HIP 21455 7.20 light-years
- HIP 22504 7.44 light-years
- HIP 26269 8.06 light-years
- HIP 31931 9.44 light-years
- HIP 30258 12.2 light-years
- ζ Oct 13.9 light-years
- HIP 24965 14.8 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.