Star · A0
AB Aur
AB Aur is a main-sequence star of spectral type A0 in the constellation Auriga, 508.6 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 22910 |
|---|---|
| Constellation | Auriga |
| Distance | 508.6 light-years (155.9 pc) |
| Apparent magnitude | magnitude 7.03 |
| Absolute magnitude | magnitude 1.07 |
| Spectral type | A0 |
| Surface temperature | 9,770 K |
| Luminosity | 59 L☉ |
| Radius | 2.96 R☉ |
| Mass | 2.4 M☉ |
| Age | 0.0 billion years |
| Right ascension (J2000) | 4h 55m 45.9s |
| Declination (J2000) | +30° 33′ 04″ |
| Space velocity (relative to the Sun) | 20.1 km/s |
In the sky
Too faint for the naked eye (magnitude 7.03); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 59° S. North of latitude 59° 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 1517. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 9.0 million years.
The Sun seen from there
From a planet around AB Aur, the Sun would look like a star of magnitude 10.79, in the direction where our sky has the constellation Scorpius. It would be invisible to the naked eye.
Planets
- AB Aur b 12.5 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.