Star · K2II
HIP 89920
HIP 89920 is a bright giant star of spectral type K2II in the constellation Corona Australis, 1,837 light-years from the Sun.
| Constellation | Corona Australis |
|---|---|
| Distance | 1,837 light-years (563.2 pc) |
| Apparent magnitude | magnitude 6.46 |
| Absolute magnitude | magnitude −2.29 |
| Spectral type | K2II |
| Surface temperature | 4,090 K |
| Luminosity | 1,830 L☉ |
| Radius | 85 R☉ |
| Mass | 7.77 M☉ (estimated) |
| Right ascension (J2000) | 18h 20m 55.2s |
| Declination (J2000) | −37° 29′ 16″ |
| Space velocity (relative to the Sun) | 18.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.46). Visible from the whole Southern Hemisphere and north to latitude 53° N. South of latitude 53° 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 189. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 33 million years.
The Sun seen from there
From a planet around HIP 89920, the Sun would look like a star of magnitude 13.58, 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.