Star · F2II
HIP 23799
HIP 23799 is a bright giant star of spectral type F2II in the constellation Auriga, 1,604 light-years from the Sun.
| Constellation | Auriga |
|---|---|
| Distance | 1,604 light-years (491.9 pc) |
| Apparent magnitude | magnitude 6.20 |
| Absolute magnitude | magnitude −2.26 |
| Spectral type | F2II |
| Surface temperature | 6,650 K |
| Luminosity | 682 L☉ |
| Radius | 19.6 R☉ |
| Mass | 5.86 M☉ (estimated) |
| Right ascension (J2000) | 5h 06m 49.6s |
| Declination (J2000) | +43° 10′ 29″ |
| Space velocity (relative to the Sun) | 16.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.20). Visible from the whole Northern Hemisphere and south to latitude 47° S. North of latitude 47° 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 422. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 28 million years.
The Sun seen from there
From a planet around HIP 23799, the Sun would look like a star of magnitude 13.29, in the direction where our sky has the constellation Scorpius. 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.