Regulus - α Leonis (alpha Leonis)
Regulus, also designated as α Leonis (alpha Leonis), is a variable and multiple main-sequence star of spectral class B7 in the constellation of Leo.
Regulus visual magnitude is 1.35, making it the 21th brightest star in the sky. Because of its brightness, Regulus 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
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Finder chart for Regulus - α Leonis (alpha Leonis).
Magnitude, Color, Spectral Class

The red dot in the diagram below shows where Regulus is situated in the Hertzsprung–Russell diagram.

Star System Properties
Regulus 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 Regulus double sysyem:
Distance, Radial Speed, Proper Motion
Regulus is distant 77.45 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's Regulus - α Leonis (alpha Leonis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):