Observe ursa-major in the sky in real time in 3D. You will also be able to see the planets of the solar system, the Sun and the Moon. Navigate freely in the sky by clicking on the keys to move forward or backward in time. Discover its position and display the azimuth grid to find your way in the sky. The « screen » feature allows you to take a picture of the sky and download the image.

MARDI 7 JUILLET 2026 À 10:14 UTC+2

Observation of the Ursa Major constellation

Visualize in real time the position of the Ursa Major constellation in the sky.

General presentation

The constellation of Ursa Major is one of the most famous and easily recognizable constellations in the night sky. It has been used for centuries as a landmark by travelers, navigators and astronomers. Ursa Major is particularly known for containing the Great Chariot, a group of seven bright stars often confused with the entire constellation. Thanks to its exceptional visibility and bright stars, Ursa Major is often one of the first constellations learned by beginners. It allows in particular to easily locate the North Star and the constellation of Ursa Minor.

Shape of the Ursa Major constellation

Its shape is rarely perceived as that of a bear by modern observers. The best known part is the Great Chariot, formed by seven bright stars. Four of these stars are shaped like a saucepan or cart, while three others form a curved handle. This figure is very easy to recognize even in a moderately bright sky. When we connect the less bright stars of the constellation, we can imagine the elongated body of the bear. For many observers, the Big Dipper looks more like a large pot or cart.

Stars of the Ursa Major constellation

StarMagnitudeDistanceEquatorial position J2000Current Equatorial PositionCurrent Horizontal Position at MarseilleLink
Alioth1.7782.6 light yearsRight ascension :
12ʰ54ᵐ1.75ˢ
Declination : 55°57'1.75″
Right ascension :
12ʰ55ᵐ11.9871547561ˢ
Declination :
55°49′17.0665465101″
Azimut :
-157.76412314157847°
Altitude :
14.89077339629911°
Dubhe1.79123 light yearsRight ascension :
11ʰ3ᵐ43.672ˢ
Declination : 61°45'43.672″
Right ascension :
11ʰ5ᵐ21.0274404041ˢ
Declination :
61°36′35.173422451″
Azimut :
-149.9350596028103°
Altitude :
28.30133747165611°
Mizar2.2382.9 light yearsRight ascension :
13ʰ23ᵐ55.54ˢ
Declination : 54°55'55.54″
Right ascension :
13ʰ25ᵐ.1723506825ˢ
Declination :
54°47′32.810105601″
Azimut :
-161.18382360958634°
Altitude :
12.06825326733833°
Alkaid1.86103.9 light yearsRight ascension :
13ʰ47ᵐ32.438ˢ
Declination : 49°18'32.438″
Right ascension :
13ʰ48ᵐ36.5801679189ˢ
Declination :
49°10′59.3987647055″
Azimut :
-162.49296874947646°
Altitude :
5.51602626573638°
Merak2.3779.7 light yearsRight ascension :
11ʰ1ᵐ50.477ˢ
Declination : 56°22'50.477″
Right ascension :
11ʰ3ᵐ25.3584573469ˢ
Declination :
56°14′40.0344440001″
Azimut :
-145.2084232792201°
Altitude :
24.98318912769224°
Phecda2.4483.2 light yearsRight ascension :
11ʰ53ᵐ49.847ˢ
Declination : 53°41'49.847″
Right ascension :
11ʰ55ᵐ13.0892052397ˢ
Declination :
53°33′8.2659370945″
Azimut :
-148.98828574155712°
Altitude :
17.904627660190453°
Megrez3.3180.5 light yearsRight ascension :
12ʰ15ᵐ25.56ˢ
Declination : 57°1'25.56″
Right ascension :
12ʰ16ᵐ44.0477998583ˢ
Declination :
56°53′26.1675379772″
Azimut :
-153.69233619329833°
Altitude :
18.67045353662806°