Star · A8IV
κ² Boo
κ² Boo is a subgiant star of spectral type A8IV in the constellation Boötes, 161.8 light-years from the Sun.
| Other names | HIP 69483 |
|---|---|
| Constellation | Boötes |
| Distance | 161.8 light-years (49.6 pc) |
| Apparent magnitude | magnitude 4.53 |
| Absolute magnitude | magnitude 1.05 |
| Spectral type | A8IV |
| Surface temperature | 7,920 K |
| Luminosity | 34 L☉ |
| Radius | 3.1 R☉ |
| Mass | 2.49 M☉ (estimated) |
| Right ascension (J2000) | 14h 13m 29.0s |
| Declination (J2000) | +51° 47′ 24″ |
| Space velocity (relative to the Sun) | 22.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.53). Visible from the whole Northern Hemisphere and south to latitude 38° S. North of latitude 38° 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 1864. 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 κ² Boo, the Sun would look like a star of magnitude 8.31, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- κ¹ Boo 7.98 light-years
- SDSS J141659.78+500626.4 10.1 light-years
- SDSS J134925.25+504954.5 12.0 light-years
- HIP 68193 13.1 light-years
- SDSS J141152.69+555927.2 13.2 light-years
- HIP 69535 13.5 light-years
- HIP 69699 14.0 light-years
- HIP 69793 15.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.