Alioth (ε UMa) - The brightest star of the constellation. It is a short-period variable star and also a binary star, with components having an orbital period of 4.15 years, which can only be discerned through spectroscopic methods. The variation in its brightness in a period of 5.09 days is only within a range of 0.1mag and therefore cannot be observed with the naked eye. The star belongs to the type of stars α2 Canum Venaticorum, which also exhibit variations in their magnetic field.

Mizar a Alcor (ζ a 80 UMa) - The most famous binary star, which Arabs used to call "guide" or "sharpness tester of vision". The mutual distance between the two stars is 12', so a healthy eye can easily distinguish them practically always. They form a nice pair even in a telescope.

ξ UMa - The first binary star, for which the orbital path of its components was calculated, took place 60 years ago. It was achieved in 1828 by the French astronomer Felix Savary. It consists of golden components with a brightness of 4.3 mag and 4.8 mag, separated by 3 billion kilometers. Around 1970, they had a mutual separation of 3", and could easily be distinguished even with small telescopes. Then their mutual separation decreased, reaching its minimum in 1992 - 0.8". Today, this value is around 2", so a telescope with an 8 cm objective diameter is sufficient for their resolution.

Groombridge 1830 - A nearby star, which has the third fastest known motion after Barnard's Star and Kapteyn's Star - 7.04" per year. In about 100,000 years, the star will move from Ursa Major to the constellation of Canis Major! Because it is 28 light-years away, its rapid apparent motion is more a result of its actual space velocity than its proximity. Such stars are part of the Galactic Halo and therefore as old as globular clusters. Arcturus in Boötes is their brightest example.

Lalande 21185 - The nearby red dwarf, which has a brightness of 7.49 mag, is located at a distance of 8.1 light-years and is our fourth closest star after the Alpha Centauri system, Barnard's Star from Ophiuchus, and Wolf 359 from Leo. It has the 8th largest known proper motion - it moves across the sky by 4.78" per year. This red dwarf has an absolute magnitude of +10.5, which corresponds to a luminosity of 0.0048 times that of the Sun. Lalande 21185 has a companion, but it has never been visually observed.