Star · K4 III
11 UMi
11 UMi is a giant star of spectral type K4 III in the constellation Ursa Minor, 411.5 light-years from the Sun. It is orbited by 1 confirmed exoplanet(s).
| Other names | HIP 74793 |
|---|---|
| Constellation | Ursa Minor |
| Distance | 411.5 light-years (126.2 pc) |
| Apparent magnitude | magnitude 5.02 |
| Absolute magnitude | magnitude −0.48 |
| Spectral type | K4 III |
| Surface temperature | 4,210 K |
| Luminosity | 269 L☉ |
| Radius | 29.8 R☉ |
| Mass | 2.78 M☉ |
| Age | 1.6 billion years |
| Metallicity [Fe/H] | -0.02 |
| Right ascension (J2000) | 15h 17m 05.9s |
| Declination (J2000) | +71° 49′ 26″ |
| Space velocity (relative to the Sun) | 18.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.02). Visible from the whole Northern Hemisphere and south to latitude 18° S. North of latitude 18° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1614. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.3 million years.
The Sun seen from there
From a planet around 11 UMi, the Sun would look like a star of magnitude 10.33, in the direction where our sky has the constellation Hydrus. It would be invisible to the naked eye.
Planets
- 11 UMi b 516-day orbit · 12.3 R⊕
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.