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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 » Cepheus » 

13 Cephei

Above the horizon.  Circumpolar today
Alt: 46.71°   Az: 51.38°   Direction: North-East

13 Cephei is a variable supergiant star of spectral class B8 in the constellation of Cepheus.

13 Cephei visual magnitude is 5.8. Because of its faintness, 13 Cephei 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.

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

Image of 13 Cephei star
DSS2 image of 13 Cephei. The red arrow shows the motion of 13 Cephei during the next 100000 years (-5.00 arcmin in Right Ascension and -1.67 arcmin in declination);

Celestial Coordinates


21h 55m 42s
+56° 43’ 41”
18h 49m 53s
16h 45m 36s


21h 54m 53s
+56° 36’ 41”

Galactic Coordinates


Finder Chart

Finder chart 13 Cephei star
Simplified finder chart for 13 Cephei.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where 13 Cephei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 13 Cephei. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

13 Cephei is distant 2,527.13 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

775.19 pc
2,527.13 ly
-15 km/s
-0.003 arcsec/y
-0.001 "/y

Alternative Designations


Visibility from Your Location

13 Cephei is circumpolar and transits at 02:21 UTC (altitude: 84.8°)