Mirfak - α Persei (alpha Persei)
Mirfak, also designated as α Persei (alpha Persei), is a variable and double supergiant star of spectral class F5 in the constellation of Perseus.
Mirfak visual magnitude is 1.79, making it the 34th brightest star in the sky. Because of its brightness, Mirfak 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 Mirfak is situated in the Hertzsprung–Russell diagram.
Star System Properties
Mirfak 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 Mirfak double sysyem:
Distance, Radial Speed, Proper Motion
Mirfak is distant 591.65 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.
Alternative Designations
Visibility from Your Location
Mirfak - α Persei (alpha Persei) is circumpolar and transits at 11:12 UTC (altitude: 88.5°)