Star · K2III
HIP 90842
HIP 90842 is a giant star of spectral type K2III in the constellation Corona Australis, 1,514 light-years from the Sun.
| Constellation | Corona Australis |
|---|---|
| Distance | 1,514 light-years (464.3 pc) |
| Apparent magnitude | magnitude 5.71 |
| Absolute magnitude | magnitude −2.62 |
| Spectral type | K2III |
| Surface temperature | 4,080 K |
| Luminosity | 2,510 L☉ |
| Radius | 100 R☉ |
| Mass | 8.51 M☉ (estimated) |
| Right ascension (J2000) | 18h 31m 56.2s |
| Declination (J2000) | −43° 30′ 27″ |
| Space velocity (relative to the Sun) | 20.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.71). Visible from the whole Southern Hemisphere and north to latitude 46° N. South of latitude 46° 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 512. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 27 million years.
The Sun seen from there
From a planet around HIP 90842, the Sun would look like a star of magnitude 13.16, 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.