Orange giant · Ursa Major
Alula Borealis
Also known as: ν Ursae Majoris (ν UMa), HIP 55219
mag 3.5400 light-years
About
Alula Borealis (ν Ursae Majoris) is an orange giant of magnitude 3.5 in Ursa Major, about 400 light-years away.
How to find it
- Alula Borealis is in the constellation Ursa Major.
- Best evenings: around late 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 47° 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 | Alula Borealis |
|---|---|
| Designation | ν Ursae Majoris (ν UMa) |
| Hipparcos number | HIP 55219 |
| Type | Orange giant |
| Spectral type | K3III SB |
| Colour | OrangeB−V colour index 1.40 |
| Magnitude | 3.5The smaller the number, the brighter. |
| Distance | 400 light-yearsThe light you see left it around 1630. |
| Proper motion | 0.038″ per year across the sky |
| Constellation | Ursa Major |
| Right ascension (J2000) | 11h 18m 28.7s |
| Declination (J2000) | +33° 05′ 39″ |
More in Ursa Major
M81Bode's GalaxyGalaxy · mag 6.8
M101Pinwheel GalaxyGalaxy · mag 7.7
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 →