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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
All Constellations » Perseus » 

34 Persei

Altitude: 49.5°   Azimuth: 294.1°   Direction: West-North-West

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

34 Persei visual magnitude is 4.67. Because of its moderate brightness, 34 Persei should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 34 Persei:


34 Persei is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 49.5°
Azimuth: 294.1°
Direction: West-North-West

Celestial coordinates and finder chart of 34 Persei

34 Persei is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 34 Persei are provided in the following table:

03h 29m 22s
+49° 30’ 32”

The simplified sky map below shows the position of 34 Persei in the sky:

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

Visibility of 34 Persei from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

34 Persei is circumpolar and transits at 22:15 UTC (altitude: 88.0°)

Digitized Sky Survey image of 34 Persei

The image below is a photograph of 34 Persei from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 34 Persei is 0.026 arcsec per year in Right Ascension and -0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

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);

Distance of 34 Persei from the Sun and relative movement

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/year
-0.027 arcsec/year

Spectral properties of 34 Persei

34 Persei belongs to spectral class B3 and has a luminosity class of V corresponding to a main-sequence star.


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

34 Persei 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

Alternative designations of 34 Persei