31 Cephei

Above the horizon. Circumpolar today

Alt: 36.57° Az: 350.98° Direction: North

31 Cephei is a giant star of spectral class F3 in the constellation of Cepheus.

31 Cephei visual magnitude is 5.08. Because of its faintness, 31 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.

DSS2 image of 31 Cephei. The red arrow shows the motion of 31 Cephei during the next 1000 years (2.87 arcmin in Right Ascension and 0.38 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 22h 36m 21s

Declination +73° 46’ 18”

Hour Angle 10h 12m 53s

Sidereal Time 08h 49m 15s

J2000

Right Ascension 22h 35m 46s

Declination +73° 38’ 35”

Galactic Coordinates

Galactic Longitude 113.64°

Galactic Latitude 13.27°

Finder Chart

Simplified finder chart for 31 Cephei.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.08

Class Giant

Absolute magnitude 1.32

Spectral Type F3III

Color Index (B-V) 0.39

Temperature 6934K

The red dot in the diagram below shows where 31 Cephei is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 31 Cephei. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

31 Cephei is distant 184.18 light years from the Sun

Distance (parsec) 56.50

Distance (light year) 184.18

Proper Motion RA 0.172 arcsec/y

Proper Motion Dec 0.023"/y

Alternative Designations

Flamsteed designation 31 Cephei

Henry Draper Catalogue HD214470

SAO Catalogue SAO10425

Hipparcos Catalogue HIP111532

Durchmusterung Catalogue BD+72 1049

FK5 Catalogue 851

Visibility from Your Location

31 Cephei is circumpolar and transits at 20:52 UTC (altitude: 67.7°)

Set Location

Other stars in Cepheus