θ Boötis (theta Boötis)
θ Boötis is a variable and double main-sequence star of spectral class F7 in the constellation of Boötes.
θ Boötis visual magnitude is 4.05. Because of its moderate brightness, θ Boötis 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 Boötis is situated in the Hertzsprung–Russell diagram.
Star System Properties
θ Boötis 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 Boötis double sysyem:
Distance, Radial Speed, Proper Motion
θ Boötis is distant 47.50 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.
Alternative Designations
Visibility from Your Location
θ Boötis (theta Boötis) is circumpolar and transits at 04:16 UTC (altitude: 83.2°)