θ Persei (theta Persei)
θ Persei is a variable and multiple main-sequence star of spectral class F8 in the constellation of Perseus.
θ Persei visual magnitude is 4.12. Because of its moderate brightness, θ Persei 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 θ Persei is situated in the Hertzsprung–Russell diagram.
Star System Properties
θ Persei 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 θ Persei double sysyem:
Distance, Radial Speed, Proper Motion
θ Persei is distant 36.62 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.
Alternative Designations
Visibility from Your Location
θ Persei (theta Persei) is circumpolar and transits at 10:44 UTC (altitude: 87.9°)