Star · K2 III
HIP 105854
HIP 105854 is a giant star of spectral type K2 III in the constellation Microscopium, 257.2 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Constellation | Microscopium |
|---|---|
| Distance | 257.2 light-years (78.9 pc) |
| Apparent magnitude | magnitude 5.64 |
| Absolute magnitude | magnitude 1.16 |
| Spectral type | K2 III |
| Surface temperature | 4,780 K |
| Luminosity | 46.8 L☉ |
| Radius | 10.3 R☉ |
| Mass | 2.1 M☉ |
| Metallicity [Fe/H] | 0.31 |
| Right ascension (J2000) | 21h 26m 22.9s |
| Declination (J2000) | −37° 49′ 46″ |
| Space velocity (relative to the Sun) | 104.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.64). Visible from the whole Southern Hemisphere and north to latitude 52° N. South of latitude 52° S it never sets. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1769. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.6 million years.
The Sun seen from there
From a planet around HIP 105854, the Sun would look like a star of magnitude 9.31, in the direction where our sky has the constellation Leo Minor. It would be invisible to the naked eye.
Planets
- HIP 105854 b 184-day orbit · 12.6 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 106123 3.12 light-years
- HIP 106098 5.26 light-years
- HIP 105029 9.88 light-years
- HIP 105086 12.6 light-years
- HIP 105434 17.2 light-years
- HIP 106705 18.0 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.