θ Ursae Majoris (theta Ursae Majoris)
θ Ursae Majoris is a variable and double sub-giant star of spectral class F6 in the constellation of Ursa Major.
θ Ursae Majoris visual magnitude is 3.17. Because of its moderate brightness, θ Ursae Majoris is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where θ Ursae Majoris is situated in the Hertzsprung–Russell diagram.
Star System Properties
θ Ursae Majoris is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the θ Ursae Majoris double sysyem:
Distance, Radial Speed, Proper Motion
θ Ursae Majoris is distant 43.96 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.
Alternative Designations
Visibility from Your Location
θ Ursae Majoris (theta Ursae Majoris) is circumpolar and transits at 17:36 UTC (altitude: 89.9°)