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public LocationGreenwich, UK
Sunrise: 5:00 
Transit: 13:04 
Sunset: 21:07
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations » Perseus » 

34 Persei

Above the horizon.  Circumpolar today
Alt: 13.40°   Az: 16.75°   Direction: North-North-East

34 Persei is a double main-sequence star of spectral class B3 in the constellation of Perseus.

34 Persei visual magnitude is 4.67. Because of its moderate brightness, 34 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.

34 Persei is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere.

Image of 34 Persei star
DSS2 image of 34 Persei. The red arrow shows the motion of 34 Persei during the next 10000 years (4.33 arcmin in Right Ascension and -4.50 arcmin in declination);

Celestial Coordinates


03h 31m 08s
+49° 35’ 30”
13h 42m 29s
17h 13m 37s


03h 29m 22s
+49° 30’ 32”

Galactic Coordinates


Finder Chart

Finder chart 34 Persei star
Simplified finder chart for 34 Persei.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where 34 Persei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 34 Persei. Attribution: Richard Powell / CC BY-SA

Star System Properties

34 Persei is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the 34 Persei double sysyem:

0.8 arcsec

Distance, Radial Speed, Proper Motion

34 Persei is distant 558.22 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

171.23 pc
558.22 ly
-2 km/s
0.026 arcsec/y
-0.027 "/y

Alternative Designations


Visibility from Your Location

34 Persei is circumpolar and transits at 07:56 UTC (altitude: 88.1°)