Star · F5IV
HIP 78665
HIP 78665 is a subgiant star of spectral type F5IV in the constellation Lupus, 186.6 light-years from the Sun.
| Constellation | Lupus |
|---|---|
| Distance | 186.6 light-years (57.2 pc) |
| Apparent magnitude | magnitude 6.00 |
| Absolute magnitude | magnitude 2.21 |
| Spectral type | F5IV |
| Surface temperature | 6,530 K |
| Luminosity | 11.1 L☉ |
| Radius | 2.61 R☉ |
| Mass | 1.83 M☉ (estimated) |
| Right ascension (J2000) | 16h 03m 34.4s |
| Declination (J2000) | −32° 00′ 02″ |
| Space velocity (relative to the Sun) | 30.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.00). Visible from the whole Southern Hemisphere and north to latitude 58° N. South of latitude 58° S it never sets. It stands highest at midnight in May, 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 HIP 78665, the Sun would look like a star of magnitude 8.62, in the direction where our sky has the constellation Perseus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 78609 4.65 light-years
- HIP 78313 6.18 light-years
- HIP 78242 6.93 light-years
- HIP 78714 8.90 light-years
- HIP 79138 9.00 light-years
- HIP 77599 9.73 light-years
- HIP 79127 10.1 light-years
- HIP 120121 12.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.