Star · K4III
HIP 72664
HIP 72664 is a giant star of spectral type K4III in the constellation Draco, 439.2 light-years from the Sun.
| Constellation | Draco |
|---|---|
| Distance | 439.2 light-years (134.7 pc) |
| Apparent magnitude | magnitude 5.48 |
| Absolute magnitude | magnitude −0.17 |
| Spectral type | K4III |
| Surface temperature | 4,000 K |
| Luminosity | 285 L☉ |
| Radius | 35.1 R☉ |
| Mass | 4.57 M☉ (estimated) |
| Right ascension (J2000) | 14h 51m 26.4s |
| Declination (J2000) | +59° 17′ 38″ |
| Space velocity (relative to the Sun) | 117.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.48). Visible from the whole Northern Hemisphere and south to latitude 31° S. North of latitude 31° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1587. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.8 million years.
The Sun seen from there
From a planet around HIP 72664, the Sun would look like a star of magnitude 10.48, in the direction where our sky has the constellation Horologium. 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.