Star · K1 III
HIP 111909
HIP 111909 is a giant star of spectral type K1 III in the constellation Grus, 287.1 light-years from the Sun. It is orbited by 2 confirmed exoplanet(s).
| Constellation | Grus |
|---|---|
| Distance | 287.1 light-years (88.0 pc) |
| Apparent magnitude | magnitude 7.37 |
| Absolute magnitude | magnitude 2.65 |
| Spectral type | K1 III |
| Surface temperature | 4,890 K |
| Luminosity | 10.5 L☉ |
| Radius | 4.53 R☉ |
| Mass | 1.28 M☉ |
| Age | 4.3 billion years |
| Metallicity [Fe/H] | -0.01 |
| Right ascension (J2000) | 22h 40m 07.2s |
| Declination (J2000) | −49° 35′ 54″ |
| Space velocity (relative to the Sun) | 42.0 km/s |
In the sky
Too faint for the naked eye (magnitude 7.37); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 40° N. South of latitude 40° 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 1739. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.1 million years.
The Sun seen from there
From a planet around HIP 111909, the Sun would look like a star of magnitude 9.55, in the direction where our sky has the constellation Ursa Major. It would be invisible to the naked eye.
Planets
- HIP 111909 b 487-day orbit · 13.7 R⊕
- HIP 111909 c 894-day orbit · 13.9 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 113629 17.2 light-years
- HIP 110303 17.6 light-years
- HIP 112930 17.9 light-years
- HIP 111027 18.0 light-years
- HIP 110952 19.4 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.