Star · K2III
9 Dra
9 Dra is a giant star of spectral type K2III in the constellation Draco, 637.7 light-years from the Sun.
| Other names | HIP 63432 |
|---|---|
| Constellation | Draco |
| Distance | 637.7 light-years (195.5 pc) |
| Apparent magnitude | magnitude 5.37 |
| Absolute magnitude | magnitude −1.09 |
| Spectral type | K2III |
| Surface temperature | 4,150 K |
| Luminosity | 567 L☉ |
| Radius | 46 R☉ |
| Mass | 5.56 M☉ (estimated) |
| Right ascension (J2000) | 12h 59m 55.1s |
| Declination (J2000) | +66° 35′ 50″ |
| Space velocity (relative to the Sun) | 133.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.37). Visible from the whole Northern Hemisphere and south to latitude 23° S. North of latitude 23° 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 1388. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 11 million years.
The Sun seen from there
From a planet around 9 Dra, the Sun would look like a star of magnitude 11.29, in the direction where our sky has the constellation Tucana. 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.