τ Andromedae (tau Andromedae)
τ Andromedae is a variable and double giant star of spectral class B8 in the constellation of Andromeda.
τ Andromedae visual magnitude is 4.94. Because of its moderate brightness, τ Andromedae 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 Andromedae is situated in the Hertzsprung–Russell diagram.
Star System Properties
τ Andromedae is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the τ Andromedae double sysyem:
Distance, Radial Speed, Proper Motion
τ Andromedae is distant 680.58 light years from the Sun and it is moving towards the Sun at the speed of 14 kilometers per second.
Alternative Designations
Visibility from Your Location
τ Andromedae (tau Andromedae) is circumpolar and transits at 07:39 UTC (altitude: 79.2°)