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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:15 
Transit: 12:47 
Sunset: 18:17
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All Constellations » Cepheus » 

30 Cephei

Above the horizon.  Circumpolar today
Alt: 55.60°   Az: 44.48°   Direction: North-East

30 Cephei is a sub-giant star of spectral class A3 in the constellation of Cepheus.

30 Cephei visual magnitude is 5.19. Because of its faintness, 30 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.

Image of 30 Cephei star
DSS2 image of 30 Cephei. The red arrow shows the motion of 30 Cephei during the next 10000 years (-0.50 arcmin in Right Ascension and -4.17 arcmin in declination);

Celestial Coordinates

Apparent

22h 39m 32s
+63° 42’ 49”
19h 46m 29s
18h 26m 01s

J2000

22h 38m 39s
+63° 35’ 03”

Galactic Coordinates

108.79°
4.42°

Finder Chart

Finder chart 30 Cephei star
Simplified finder chart for 30 Cephei.

Magnitude, Color, Spectral Class

5.19
Sub-giant

0.23
A3IV
9434K

The red dot in the diagram below shows where 30 Cephei is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 30 Cephei. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

30 Cephei is distant 319.61 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

98.04
319.61
11 km/s
-0.003 arcsec/y
-0.025"/y

Alternative Designations

SAO20190
SAO20190

Visibility from Your Location

30 Cephei is circumpolar and transits at 21:23 UTC (altitude: 77.8°)