Star · B9V
50 Boo
50 Boo is a main-sequence star of spectral type B9V in the constellation Boötes, 269.9 light-years from the Sun.
| Other names | HIP 75178 |
|---|---|
| Constellation | Boötes |
| Distance | 269.9 light-years (82.7 pc) |
| Apparent magnitude | magnitude 5.38 |
| Absolute magnitude | magnitude 0.79 |
| Spectral type | B9V |
| Surface temperature | 10,810 K |
| Luminosity | 64.7 L☉ |
| Radius | 2.29 R☉ |
| Mass | 2.99 M☉ (estimated) |
| Right ascension (J2000) | 15h 21m 48.6s |
| Declination (J2000) | +32° 56′ 01″ |
| Space velocity (relative to the Sun) | 21.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.38). Visible from the whole Northern Hemisphere and south to latitude 57° S. North of latitude 57° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1756. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.8 million years.
The Sun seen from there
From a planet around 50 Boo, the Sun would look like a star of magnitude 9.42, in the direction where our sky has the constellation Fornax. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- SDSS J151542.29+325543.2 10.9 light-years
- HIP 74868 11.5 light-years
- HIP 75000 14.7 light-years
- ο CrB 16.3 light-years
- HIP 74422 16.9 light-years
- HIP 75283 18.9 light-years
- HIP 75895 19.6 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.