Star · K1III
15 Boo
15 Boo is a giant star of spectral type K1III in the constellation Boötes, 270.7 light-years from the Sun.
| Other names | HIP 69612 |
|---|---|
| Constellation | Boötes |
| Distance | 270.7 light-years (83.0 pc) |
| Apparent magnitude | magnitude 5.29 |
| Absolute magnitude | magnitude 0.70 |
| Spectral type | K1III |
| Surface temperature | 4,730 K |
| Luminosity | 71.3 L☉ |
| Radius | 12.6 R☉ |
| Mass | 3.07 M☉ (estimated) |
| Right ascension (J2000) | 14h 14m 50.8s |
| Declination (J2000) | +10° 06′ 02″ |
| Space velocity (relative to the Sun) | 67.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.29). Visible from the whole Northern Hemisphere and south to latitude 80° S. North of latitude 80° 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 1755. 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 15 Boo, the Sun would look like a star of magnitude 9.42, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 69301 13.1 light-years
- HIP 68986 16.1 light-years
- HIP 68642 16.2 light-years
- HIP 68498 16.9 light-years
- HIP 69390 18.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.