τ Ursae Majoris (tau Ursae Majoris)
τ Ursae Majoris is a multiple giant star of spectral class F3 in the constellation of Ursa Major.
τ Ursae Majoris visual magnitude is 4.67. Because of its moderate brightness, τ 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 τ Ursae Majoris is situated in the Hertzsprung–Russell diagram.
Star System Properties
τ 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 τ Ursae Majoris double sysyem:
Distance, Radial Speed, Proper Motion
τ Ursae Majoris is distant 121.69 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.
Alternative Designations
Visibility from Your Location
τ Ursae Majoris (tau Ursae Majoris) is circumpolar and transits at 14:33 UTC (altitude: 74.7°)