Star · M0III
Tania Australis
Tania Australis is a giant star of spectral type M0III in the constellation Ursa Major, 183.2 light-years from the Sun.
| Other names | μ UMa · HIP 50801 |
|---|---|
| Constellation | Ursa Major |
| Distance | 183.2 light-years (56.2 pc) |
| Apparent magnitude | magnitude 3.06 |
| Absolute magnitude | magnitude −0.69 |
| Spectral type | M0III |
| Surface temperature | 3,640 K |
| Luminosity | 733 L☉ |
| Radius | 67.9 R☉ |
| Mass | 5.98 M☉ (estimated) |
| Right ascension (J2000) | 10h 22m 19.7s |
| Declination (J2000) | +41° 29′ 58″ |
| Space velocity (relative to the Sun) | 30.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.06). Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° 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 1843. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.3 million years.
The Sun seen from there
From a planet around Tania Australis, the Sun would look like a star of magnitude 8.58, in the direction where our sky has the constellation Grus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 50327 6.14 light-years
- HIP 50325 7.28 light-years
- SDSS J102600.06+395509.6 9.42 light-years
- HIP 49482 9.80 light-years
- HIP 50776 10.9 light-years
- HIP 49826 13.6 light-years
- HIP 52510 16.1 light-years
- SDSS J101105.22+382617.5 17.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.