Star · A9IV
HIP 87174
HIP 87174 is a subgiant star of spectral type A9IV in the constellation Ara, 172.9 light-years from the Sun.
| Constellation | Ara |
|---|---|
| Distance | 172.9 light-years (53.0 pc) |
| Apparent magnitude | magnitude 6.09 |
| Absolute magnitude | magnitude 2.47 |
| Spectral type | A9IV |
| Surface temperature | 7,570 K |
| Luminosity | 8.97 L☉ |
| Radius | 1.74 R☉ |
| Mass | 1.73 M☉ (estimated) |
| Right ascension (J2000) | 17h 48m 38.1s |
| Declination (J2000) | −55° 24′ 06″ |
| Space velocity (relative to the Sun) | 16.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.09). Visible from the whole Southern Hemisphere and north to latitude 35° N. South of latitude 35° S it never sets. It stands highest at midnight in June, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1853. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.1 million years.
The Sun seen from there
From a planet around HIP 87174, the Sun would look like a star of magnitude 8.45, in the direction where our sky has the constellation Auriga. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 88642 10.0 light-years
- HIP 86691 14.1 light-years
- HIP 89430 16.0 light-years
- HIP 86690 16.7 light-years
- HIP 88399 17.4 light-years
- Gl 698.1 17.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.