Star · A3V
HIP 78661
HIP 78661 is a main-sequence star of spectral type A3V in the constellation Ursa Minor, 549.6 light-years from the Sun.
| Constellation | Ursa Minor |
|---|---|
| Distance | 549.6 light-years (168.5 pc) |
| Apparent magnitude | magnitude 5.73 |
| Absolute magnitude | magnitude −0.40 |
| Spectral type | A3V |
| Surface temperature | 9,530 K |
| Luminosity | 159 L☉ |
| Radius | 4.62 R☉ |
| Mass | 3.87 M☉ (estimated) |
| Right ascension (J2000) | 16h 03m 31.4s |
| Declination (J2000) | +76° 47′ 38″ |
| Space velocity (relative to the Sun) | 30.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.73). Visible from the whole Northern Hemisphere and south to latitude 13° S. North of latitude 13° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1476. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 9.7 million years.
The Sun seen from there
From a planet around HIP 78661, the Sun would look like a star of magnitude 10.96, in the direction where our sky has the constellation Mensa. 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.