Star · A0
Xuange
Xuange is a main-sequence star of spectral type A0 in the constellation Boötes, 100.1 light-years from the Sun.
| Other names | λ Boo · GJ 3837 · HIP 69732 |
|---|---|
| Constellation | Boötes |
| Distance | 100.1 light-years (30.7 pc) |
| Apparent magnitude | magnitude 4.18 |
| Absolute magnitude | magnitude 1.75 |
| Spectral type | A0 |
| Surface temperature | 9,160 K |
| Luminosity | 20.8 L☉ |
| Radius | 1.81 R☉ |
| Mass | 2.16 M☉ (estimated) |
| Right ascension (J2000) | 14h 16m 23.1s |
| Declination (J2000) | +46° 05′ 18″ |
| Space velocity (relative to the Sun) | 35.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.18). Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1926. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.8 million years.
The Sun seen from there
From a planet around Xuange, the Sun would look like a star of magnitude 7.26, in the direction where our sky has the constellation Phoenix. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 68403 5.51 light-years
- ι Boo 9.82 light-years
- GJ 9474B 9.98 light-years
- Alkaid 11.1 light-years
- 2MASSW J1411175+393636 11.7 light-years
- PSO J218.4532+50.7231 12.4 light-years
- HIP 69963 13.6 light-years
- HIP 66110 14.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.