Star · A
HIP 89470
HIP 89470 is a supergiant star of spectral type A in the constellation Sagittarius, 6,701 light-years from the Sun.
| Constellation | Sagittarius |
|---|---|
| Distance | 6,701 light-years (2,055 pc) |
| Apparent magnitude | magnitude 6.05 |
| Absolute magnitude | magnitude −5.51 |
| Spectral type | A |
| Surface temperature | 8,440 K |
| Luminosity | 15,200 L☉ |
| Radius | 57.6 R☉ |
| Mass | 14.2 M☉ (estimated) |
| Right ascension (J2000) | 18h 15m 30.8s |
| Declination (J2000) | −18° 39′ 42″ |
| Space velocity (relative to the Sun) | 17.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.05). Visible from the whole Southern Hemisphere and north to latitude 71° N. South of latitude 71° 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 6,701 years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 119 million years.
The Sun seen from there
From a planet around HIP 89470, the Sun would look like a star of magnitude 16.39, in the direction where our sky has the constellation Orion. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.