Star · A3V
65 UMa
65 UMa is a main-sequence star of spectral type A3V in the constellation Ursa Major, 743.0 light-years from the Sun.
| Other names | HIP 58112 |
|---|---|
| Constellation | Ursa Major |
| Distance | 743.0 light-years (227.8 pc) |
| Apparent magnitude | magnitude 6.54 |
| Absolute magnitude | magnitude −0.25 |
| Spectral type | A3V |
| Surface temperature | 8,870 K |
| Luminosity | 125 L☉ |
| Radius | 4.75 R☉ |
| Mass | 3.61 M☉ (estimated) |
| Right ascension (J2000) | 11h 55m 06.0s |
| Declination (J2000) | +46° 28′ 40″ |
| Space velocity (relative to the Sun) | 15.3 km/s |
In the sky
Too faint for the naked eye (magnitude 6.54); binoculars will find it. Visible from the whole Northern Hemisphere and south to latitude 44° S. North of latitude 44° N it never sets. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1283. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 13 million years.
The Sun seen from there
From a planet around 65 UMa, the Sun would look like a star of magnitude 11.62, 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.