Star · K2
HIP 66613
HIP 66613 is a supergiant star of spectral type K2 in the constellation Ursa Major, 830.4 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 830.4 light-years (254.6 pc) |
| Apparent magnitude | magnitude 6.49 |
| Absolute magnitude | magnitude −0.54 |
| Spectral type | K2 |
| Surface temperature | 3,990 K |
| Luminosity | 408 L☉ |
| Radius | 42.4 R☉ |
| Mass | 5.06 M☉ (estimated) |
| Right ascension (J2000) | 13h 39m 14.9s |
| Declination (J2000) | +51° 48′ 15″ |
| Space velocity (relative to the Sun) | 25.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.49). 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 1196. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 15 million years.
The Sun seen from there
From a planet around HIP 66613, the Sun would look like a star of magnitude 11.86, in the direction where our sky has the constellation Phoenix. 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.