Thuban - α Draconis (alpha Draconis)
Thuban, also designated as α Draconis (alpha Draconis), is a variable hypergiant star of spectral class A0 in the constellation of Draco.
Thuban visual magnitude is 3.65. Because of its moderate brightness, Thuban 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
Simplified finder chart for Thuban - α Draconis (alpha Draconis).
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where Thuban is situated in the Hertzsprung–Russell diagram.
Distance, Radial Speed, Proper Motion
Thuban is distant 308.71 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.
Alternative Designations
Visibility from Your Location
Thuban - α Draconis (alpha Draconis) is circumpolar and transits at 12:42 UTC (altitude: 77.2°)