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public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:02 
Transit: 12:55 
Sunset: 20:48
sunny   (Daytime)   What's Visible Now?

11 Cephei

Altitude: 33.1°   Azimuth: 355.1°   Direction: North

11 Cephei is a giant star in the constellation of Cepheus.

11 Cephei visual magnitude is 4.56. Because of its moderate brightness, 11 Cephei should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of 11 Cephei is 0.117 arcsec per year in Right Ascension and 0.099 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 11 Cephei star
DSS2 image of 11 Cephei. The red arrow shows the motion of 11 Cephei during the next 1000 years (1.95 arcmin in Right Ascension and 1.65 arcmin in declination);

Key facts about 11 Cephei

4.56
Giant

11 Cephei is above the horizon from Greenwich, United Kingdom.

Altitude: 33.1°
Azimuth: 355.1°
Direction: North

Celestial coordinates and finder chart of 11 Cephei

11 Cephei is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 11 Cephei are provided in the following table:

21h 41m 55s
+71° 18’ 41”
108.88°
13.82°
Cepheus

The simplified sky map below shows the position of 11 Cephei in the sky:

Finder chart 11 Cephei star
Simplified finder chart for 11 Cephei.

Visibility of 11 Cephei from your location

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

11 Cephei is circumpolar and transits at 05:52 UTC (altitude: 70.2°)

Distance of 11 Cephei from the Sun and relative movement

11 Cephei is distant 175.74 light years from the Sun and it is moving towards the Sun at the speed of 37 kilometers per second.

53.91 pc
175.74 ly
-37 km/s
0.117 arcsec/year
0.099 arcsec/year

Spectral properties of 11 Cephei

11 Cephei belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.

0.90
K1III
4515K

The red dot in the diagram below shows where 11 Cephei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 11 Cephei. Attribution: Richard Powell / CC BY-SA

Alternative designations of 11 Cephei

SAO10126
SAO10126