We use cookies to deliver essential features and to measure their performance. Learn more.
We're free & ads-free thanks to your support
public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:08 
Transit: 13:06 
Sunset: 21:03
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Cepheus » 

ζ Cephei (zeta Cephei)

Above the horizon.  Circumpolar today
Alt: 76.76°   Az: 51.17°   Direction: North-East

ζ Cephei is a variable supergiant star of spectral class K1 in the constellation of Cepheus.

ζ Cephei visual magnitude is 3.35. Because of its moderate brightness, ζ Cephei 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 ζ Cephei (zeta Cephei) star
DSS2 image of ζ Cephei. The red arrow shows the motion of ζ Cephei during the next 10000 years (2.50 arcmin in Right Ascension and 0.67 arcmin in declination);

Celestial Coordinates

Apparent

22h 11m 42s
+58° 19’ 21”
22h 40m 34s
20h 52m 16s

J2000

22h 10m 51s
+58° 12’ 03”

Galactic Coordinates

103.06°
1.67°

Finder Chart

Finder chart ζ Cephei (zeta Cephei) star
Simplified finder chart for ζ Cephei (zeta Cephei).

Magnitude, Color, Spectral Class

3.35
Supergiant

-3.39
K1I
3691K

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

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

Distance, Radial Speed, Proper Motion

ζ Cephei is distant 726.06 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

222.72
726.06
-18 km/s
0.015 arcsec/y
0.004"/y

Alternative Designations

ζ Cephei
(zeta Cephei)
SAO34137
SAO34137

Visibility from Your Location

ζ Cephei (zeta Cephei) is circumpolar and transits at 02:18 UTC (altitude: 83.2°)