Acrab - β1 Scorpii (beta1 Scorpii)
Acrab, also designated as β1 Scorpii (beta1 Scorpii), is a variable and multiple main-sequence star of spectral class B1 in the constellation of Scorpius.
Acrab visual magnitude is 2.62. Because of its brightness, Acrab is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where Acrab is situated in the Hertzsprung–Russell diagram.
Star System Properties
Acrab 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 Acrab double sysyem:
Distance, Radial Speed, Proper Motion
Acrab is distant 530.08 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's Acrab - β1 Scorpii (beta1 Scorpii) rise, transit and set times from Karratha, Australia are the following (all times relative to the local timezone Australia/Perth):