Star · K3I
HIP 90913
HIP 90913 is a supergiant star of spectral type K3I in the constellation Scutum, 4,099 light-years from the Sun.
| Constellation | Scutum |
|---|---|
| Distance | 4,099 light-years (1,257 pc) |
| Apparent magnitude | magnitude 5.47 |
| Absolute magnitude | magnitude −5.03 |
| Spectral type | K3I |
| Surface temperature | 3,170 K |
| Luminosity | 97,400 L☉ |
| Radius | 1,030 R☉ |
| Mass | 3.05 M☉ (estimated) |
| Right ascension (J2000) | 18h 32m 43.3s |
| Declination (J2000) | −14° 51′ 56″ |
| Space velocity (relative to the Sun) | 21.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.47). Visible from the whole Southern Hemisphere and north to latitude 75° N. South of latitude 75° 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 4,099 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 73 million years.
The Sun seen from there
From a planet around HIP 90913, the Sun would look like a star of magnitude 15.33, in the direction where our sky has the constellation Gemini. 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.