4 Persei
Above the horizon.
Circumpolar today
Alt: 19.67°
Az: 19.78°
Direction: North-North-East
4 Persei is a giant star of spectral class B8 in the constellation of Perseus.
4 Persei visual magnitude is 5.04. Because of its faintness, 4 Persei 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.
DSS2 image of 4 Persei. The red arrow shows the motion of 4 Persei during the next
10000 years (5.83 arcmin in Right Ascension and -0.33 arcmin in declination);
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Simplified finder chart for 4 Persei.
Magnitude, Color, Spectral Class
Simplified finder chart for 4 Persei.
The red dot in the diagram below shows where 4 Persei is situated in the HertzsprungāRussell diagram.
H-R diagram showing the position of 4 Persei.
Attribution: Richard Powell / CC BY-SA
Distance, Radial Speed, Proper Motion
4 Persei is distant 739.23 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
4 Persei is circumpolar and transits at 00:43 UTC (altitude: 86.9°)