Star · A0V
HIP 22842
HIP 22842 is a main-sequence star of spectral type A0V in the constellation Auriga, 322.3 light-years from the Sun.
| Constellation | Auriga |
|---|---|
| Distance | 322.3 light-years (98.8 pc) |
| Apparent magnitude | magnitude 6.06 |
| Absolute magnitude | magnitude 1.09 |
| Spectral type | A0V |
| Surface temperature | 10,540 K |
| Luminosity | 47.2 L☉ |
| Radius | 2.06 R☉ |
| Mass | 2.73 M☉ (estimated) |
| Right ascension (J2000) | 4h 54m 51.2s |
| Declination (J2000) | +44° 03′ 39″ |
| Space velocity (relative to the Sun) | 28.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.06). Visible from the whole Northern Hemisphere and south to latitude 46° S. North of latitude 46° N it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1704. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.7 million years.
The Sun seen from there
From a planet around HIP 22842, the Sun would look like a star of magnitude 9.80, in the direction where our sky has the constellation Scorpius. It would be invisible to the naked eye.
Neighbours
The catalogue has no other star within 20 light-years.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.