τ1 Aquarii (tau1 Aquarii)
τ1 Aquarii is a multiple hypergiant star of spectral class A0 in the constellation of Aquarius.
τ1 Aquarii visual magnitude is 5.66. Because of its faintness, τ1 Aquarii is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Simplified finder chart for τ1 Aquarii (tau1 Aquarii).
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where τ1 Aquarii is situated in the Hertzsprung–Russell diagram.
Star System Properties
τ1 Aquarii is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the τ1 Aquarii double sysyem:
Distance, Radial Speed, Proper Motion
τ1 Aquarii is distant 259.76 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
Today's τ1 Aquarii (tau1 Aquarii) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):