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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:02 
Transit: 12:56 
Sunset: 20:51
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All Constellations » Perseus » 

φ Persei (phi Persei)

Above the horizon.  Circumpolar today
Alt: 53.35°   Az: 293.36°   Direction: West-North-West

φ Persei is a variable main-sequence star of spectral class B2 in the constellation of Perseus.

φ Persei visual magnitude is 4.07. Because of its moderate brightness, φ 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.

Image of φ Persei (phi Persei) star
DSS2 image of φ Persei. The red arrow shows the motion of φ Persei during the next 10000 years (4.33 arcmin in Right Ascension and -2.33 arcmin in declination);

Celestial Coordinates

Apparent

01h 45m 15s
+50° 48’ 55”
04h 00m 33s
05h 45m 49s

J2000

01h 43m 39s
+50° 41’ 18”

Galactic Coordinates

131.32°
-11.33°

Finder Chart

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Finder chart for φ Persei (phi Persei).

Magnitude, Color, Spectral Class

4.07
Main-sequence

-2.64
B2V
10653K

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

HR Diagram
H-R diagram showing the position of φ Persei. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

φ Persei is distant 716.48 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

219.78
716.48
1 km/s
0.026 arcsec/y
-0.014"/y

Alternative Designations

φ Persei
(phi Persei)
SAO22554
SAO22554

Visibility from Your Location

φ Persei (phi Persei) is circumpolar and transits at 09:52 UTC (altitude: 89.3°)