Star · F4V
ο Gru
ο Gru is a main-sequence star of spectral type F4V in the constellation Grus, 103.8 light-years from the Sun.
| Other names | HIP 115713 |
|---|---|
| Constellation | Grus |
| Distance | 103.8 light-years (31.8 pc) |
| Apparent magnitude | magnitude 5.53 |
| Absolute magnitude | magnitude 3.02 |
| Spectral type | F4V |
| Surface temperature | 6,830 K |
| Luminosity | 5.28 L☉ |
| Radius | 1.64 R☉ |
| Mass | 1.52 M☉ (estimated) |
| Right ascension (J2000) | 23h 26m 36.5s |
| Declination (J2000) | −52° 43′ 18″ |
| Space velocity (relative to the Sun) | 29.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.53). Visible from the whole Southern Hemisphere and north to latitude 37° N. South of latitude 37° S it never sets. It stands highest at midnight in September, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1922. 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 ο Gru, the Sun would look like a star of magnitude 7.34, in the direction where our sky has the constellation Ursa Major. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- DENIS J2329343-540858 7.81 light-years
- HIP 114790 8.68 light-years
- HIP 118180 8.92 light-years
- HIP 113701 9.46 light-years
- 2MASS J23245065-5817554 10.1 light-years
- 2MASS J23155665-4747315 10.4 light-years
- HIP 112652 10.6 light-years
- HIP 116898 11.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.