Star · B3
HIP 89637
HIP 89637 is a giant star of spectral type B3 in the constellation Sagittarius, 1,423 light-years from the Sun.
| Constellation | Sagittarius |
|---|---|
| Distance | 1,423 light-years (436.3 pc) |
| Apparent magnitude | magnitude 6.03 |
| Absolute magnitude | magnitude −2.17 |
| Spectral type | B3 |
| Surface temperature | 11,510 K |
| Luminosity | 1,110 L☉ |
| Radius | 8.38 R☉ |
| Mass | 6.73 M☉ (estimated) |
| Right ascension (J2000) | 18h 17m 36.2s |
| Declination (J2000) | −34° 06′ 26″ |
| Space velocity (relative to the Sun) | 24.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.03). Visible from the whole Southern Hemisphere and north to latitude 56° N. South of latitude 56° 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 603. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 25 million years.
The Sun seen from there
From a planet around HIP 89637, the Sun would look like a star of magnitude 13.03, in the direction where our sky has the constellation Auriga. 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.