Star · K3III
ρ Boo
ρ Boo is a giant star of spectral type K3III in the constellation Boötes, 164.3 light-years from the Sun.
| Other names | HIP 71053 |
|---|---|
| Constellation | Boötes |
| Distance | 164.3 light-years (50.4 pc) |
| Apparent magnitude | magnitude 3.57 |
| Absolute magnitude | magnitude 0.06 |
| Spectral type | K3III |
| Surface temperature | 4,130 K |
| Luminosity | 203 L☉ |
| Radius | 27.9 R☉ |
| Mass | 4.15 M☉ (estimated) |
| Right ascension (J2000) | 14h 31m 49.8s |
| Declination (J2000) | +30° 22′ 17″ |
| Space velocity (relative to the Sun) | 39.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.57). Visible from the whole Northern Hemisphere and south to latitude 60° S. North of latitude 60° 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 1862. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around ρ Boo, the Sun would look like a star of magnitude 8.34, 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):
- HIP 71748 9.05 light-years
- HIP 69514 11.3 light-years
- HIP 71813 11.6 light-years
- 2MASS J14193789+3333326 13.1 light-years
- HIP 69913 13.2 light-years
- HIP 70560 15.3 light-years
- HIP 71737 16.0 light-years
- HIP 71726 16.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.