Star · F0IV
υ UMa
υ UMa is a subgiant star of spectral type F0IV in the constellation Ursa Major, 114.9 light-years from the Sun.
| Other names | HIP 48319 |
|---|---|
| Constellation | Ursa Major |
| Distance | 114.9 light-years (35.2 pc) |
| Apparent magnitude | magnitude 3.78 |
| Absolute magnitude | magnitude 1.04 |
| Spectral type | F0IV |
| Surface temperature | 7,520 K |
| Luminosity | 33.2 L☉ |
| Radius | 3.39 R☉ |
| Mass | 2.47 M☉ (estimated) |
| Right ascension (J2000) | 9h 50m 59.5s |
| Declination (J2000) | +59° 02′ 20″ |
| Space velocity (relative to the Sun) | 64.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.78). 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 February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1911. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.0 million years.
The Sun seen from there
From a planet around υ UMa, the Sun would look like a star of magnitude 7.57, in the direction where our sky has the constellation Indus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 47547 6.11 light-years
- HIP 49130 8.68 light-years
- 2MASS J10293958+5715445 11.4 light-years
- GJ 3547 13.5 light-years
- τ UMa 13.7 light-years
- 18 UMa 14.1 light-years
- HIP 50606 16.1 light-years
- HIP 43745 16.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.