Star · M3III
HIP 69829
HIP 69829 is a giant star of spectral type M3III in the constellation Boötes, 1,029 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 1,029 light-years (315.6 pc) |
| Apparent magnitude | magnitude 5.84 |
| Absolute magnitude | magnitude −1.66 |
| Spectral type | M3III |
| Surface temperature | 3,540 K |
| Luminosity | 2,100 L☉ |
| Radius | 121 R☉ |
| Mass | 8.08 M☉ (estimated) |
| Right ascension (J2000) | 14h 17m 28.5s |
| Declination (J2000) | +15° 15′ 48″ |
| Space velocity (relative to the Sun) | 27.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.84). Visible from the whole Northern Hemisphere and south to latitude 75° S. North of latitude 75° 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 997. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 18 million years.
The Sun seen from there
From a planet around HIP 69829, the Sun would look like a star of magnitude 12.33, in the direction where our sky has the constellation Cetus. 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.