Star · A2
HIP 23511
HIP 23511 is a supergiant star of spectral type A2 in the constellation Auriga, 3,241 light-years from the Sun.
| Constellation | Auriga |
|---|---|
| Distance | 3,241 light-years (993.6 pc) |
| Apparent magnitude | magnitude 6.11 |
| Absolute magnitude | magnitude −3.88 |
| Spectral type | A2 |
| Surface temperature | 8,260 K |
| Luminosity | 3,290 L☉ |
| Radius | 28 R☉ |
| Mass | 9.19 M☉ (estimated) |
| Right ascension (J2000) | 5h 03m 18.6s |
| Declination (J2000) | +41° 26′ 30″ |
| Space velocity (relative to the Sun) | 11.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.11). Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° 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 1216 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 57 million years.
The Sun seen from there
From a planet around HIP 23511, the Sun would look like a star of magnitude 14.82, 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.