We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Donate now and help us to keep this site free and ad-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sleep NighttimeWhat's Visible Now?
All Constellations » Perseus » 

54 Persei

Altitude: 41.0°   Azimuth: 276.6°   Direction: West

54 Persei is a double giant star in the constellation of Perseus.

54 Persei visual magnitude is 4.93. Because of its moderate brightness, 54 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 54 Persei:


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

Altitude: 41.0°
Azimuth: 276.6°
Direction: West

Celestial coordinates and finder chart of 54 Persei

54 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 54 Persei are provided in the following table:

04h 20m 24s
+34° 34’ 00”

The simplified sky map below shows the position of 54 Persei in the sky:

Finder chart 54 Persei star
Simplified finder chart for 54 Persei.

Visibility of 54 Persei from your location

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

Today's 54 Persei rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 55.4°
Max altitude: 73.1°
Azimuth: 304.6°

Digitized Sky Survey image of 54 Persei

The image below is a photograph of 54 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 54 Persei is -0.025 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 54 Persei star
DSS2 image of 54 Persei. The red arrow shows the motion of 54 Persei during the next 10000 years (-4.17 arcmin in Right Ascension and -0.83 arcmin in declination);

Distance of 54 Persei from the Sun and relative movement

54 Persei is distant 226.07 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.

69.35 pc
226.07 ly
-27 km/s
-0.025 arcsec/year
-0.005 arcsec/year

Spectral properties of 54 Persei

54 Persei belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 54 Persei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 54 Persei. Attribution: Richard Powell / CC BY-SA

54 Persei star system properties

54 Persei is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 54 Persei double sysyem:

110 arcsec

Alternative designations of 54 Persei