Star · M2III
13 Boo
13 Boo is a giant star of spectral type M2III in the constellation Boötes, 695.7 light-years from the Sun.
| Other names | HIP 69068 |
|---|---|
| Constellation | Boötes |
| Distance | 695.7 light-years (213.3 pc) |
| Apparent magnitude | magnitude 5.26 |
| Absolute magnitude | magnitude −1.38 |
| Spectral type | M2III |
| Surface temperature | 3,600 K |
| Luminosity | 1,500 L☉ |
| Radius | 99.5 R☉ |
| Mass | 7.33 M☉ (estimated) |
| Right ascension (J2000) | 14h 08m 17.3s |
| Declination (J2000) | +49° 27′ 29″ |
| Space velocity (relative to the Sun) | 86.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.26). Visible from the whole Northern Hemisphere and south to latitude 41° S. North of latitude 41° 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 1330. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 12 million years.
The Sun seen from there
From a planet around 13 Boo, the Sun would look like a star of magnitude 11.47, in the direction where our sky has the constellation Eridanus. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.