Red giant · Ursa Major
Tania Australis
Also known as: μ Ursae Majoris (μ UMa), HIP 50801
mag 3.1230 light-years
About
Tania Australis (μ Ursae Majoris) is a red giant of magnitude 3.1 in Ursa Major, about 230 light-years away.
How to find it
- Tania Australis is in the constellation Ursa Major.
- Best evenings: around mid-April it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
- Where on Earth: it is seen well, at least 10° up, from north of 39° S.
When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.
What you will see
- EyesVisible from the suburbs on a clear night, but lost in bright city skies.
- Binoculars (10×50)A sharp point; binoculars bring out its colour and the fainter stars around it.
- Telescope (6–8 inch)Still a point of light at any magnification — stars are too far away to show a disc. Low in the sky, bright stars twinkle and flash colours.
Stars look the same in any instrument: brighter and sharper, but never bigger.
Facts
| Proper name | Tania Australis |
|---|---|
| Designation | μ Ursae Majoris (μ UMa) |
| Hipparcos number | HIP 50801 |
| Type | Red giant |
| Spectral type | M0III SB |
| Colour | Orange-redB−V colour index 1.60 |
| Magnitude | 3.1The smaller the number, the brighter. |
| Distance | 230 light-yearsThe light you see left it around 1800. |
| Proper motion | 0.087″ per year across the sky |
| Constellation | Ursa Major |
| Right ascension (J2000) | 10h 22m 19.8s |
| Declination (J2000) | +41° 29′ 58″ |
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M40Winnecke 4Double star · mag 8.0
M82Cigar GalaxyGalaxy · mag 8.4
M109Galaxymag 9.8
M108Galaxymag 10.0
M97Owl NebulaPlanetary nebula · mag 11.2
NGC 3077The Garland GalaxyGalaxy · mag 9.9Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →