Star · K2III
38 UMa
38 UMa is a giant star of spectral type K2III in the constellation Ursa Major, 232.6 light-years from the Sun.
| Other names | HIP 52353 |
|---|---|
| Constellation | Ursa Major |
| Distance | 232.6 light-years (71.3 pc) |
| Apparent magnitude | magnitude 5.12 |
| Absolute magnitude | magnitude 0.85 |
| Spectral type | K2III |
| Surface temperature | 4,300 K |
| Luminosity | 83.6 L☉ |
| Radius | 16.5 R☉ |
| Mass | 3.22 M☉ (estimated) |
| Right ascension (J2000) | 10h 41m 56.6s |
| Declination (J2000) | +65° 42′ 59″ |
| Space velocity (relative to the Sun) | 63.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.12). Visible from the whole Northern Hemisphere and south to latitude 24° S. North of latitude 24° 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 1793. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.1 million years.
The Sun seen from there
From a planet around 38 UMa, the Sun would look like a star of magnitude 9.10, in the direction where our sky has the constellation Tucana. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 52587 3.60 light-years
- HIP 51517 5.04 light-years
- HIP 53435 6.80 light-years
- TOI-1260 8.86 light-years
- HIP 53463 8.99 light-years
- HIP 52410 15.3 light-years
- HIP 49230 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.