SkyRef / Constellations

The Ursa Major constellation

The Great Bear. Best placed in December. It sits well north on the sky and is comfortably placed for northern hemisphere observers.

Where and when

Also known asthe Great Bear
Best monthDecember
Right ascension11.0h
Declination+48°
Line segments7

Finding it

Ursa Major, known in English as the Great Bear, is centred near right ascension 11.0 hours, declination +48°. It sits well north on the sky and is comfortably placed for northern hemisphere observers.

It reaches its highest point in the sky around local midnight in December, which is when it is easiest to pick out. Earlier in the year it rises before dawn; later, it is already setting in the evening.

Bright stars in this part of the sky

StarDesignationMagnitude
Dubheα UMa1.79
Merakβ UMa2.37
Phecdaγ UMa2.44

Star patterns inside it

Not every shape people point out is a constellation. These are asterisms — patterns picked out of Ursa Major by eye and by habit, with no official standing.

the Big Dipper

See it on the live map

SkyRef draws Ursa Major in its real position for wherever you are, right now, along with the other 88 IAU figures.

Open the live sky map →

Other constellations

AndromedaAntliaApusAquariusAquilaAraAriesAurigaBoötesCaelumCamelopardalisCancerCanes VenaticiCanis MajorCanis MinorCapricornusCarinaCassiopeiaCentaurusCepheusCetusChamaeleonCircinusColumbaComa BerenicesCorona AustrinaCorona BorealisCorvusCraterCruxCygnusDelphinusDoradoDracoEquuleusEridanusFornaxGeminiGrusHercules