We use cookies to deliver essential features and to measure their performance. Learn more.
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:15 
Transit: 12:47 
Sunset: 18:17
sunny   (Daytime)  
What's Visible Now • Tonight Timeline
Search  close
All Constellations » Cassiopeia » 

Caph - β Cassiopeiae (beta Cassiopeiae)

Above the horizon.  Circumpolar today
Alt: 21.71°   Az: 350.29°   Direction: North

Caph, also designated as β Cassiopeiae (beta Cassiopeiae), is a variable and double giant star of spectral class F2 in the constellation of Cassiopeia.

Caph visual magnitude is 2.27, making it the 72th brightest star in the sky. Because of its brightness, Caph is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of Caph - β Cassiopeiae (beta Cassiopeiae) star
DSS2 image of Caph. The red arrow shows the motion of Caph during the next 1000 years (8.75 arcmin in Right Ascension and -3.02 arcmin in declination);

Celestial Coordinates

Apparent

00h 10m 29s
+59° 17’ 15”
10h 48m 33s
10h 59m 03s

J2000

00h 09m 10s
+59° 08’ 58”

Galactic Coordinates

117.52°
-3.27°

Finder Chart

Finder chart Caph - β Cassiopeiae (beta Cassiopeiae) star
Simplified finder chart for Caph - β Cassiopeiae (beta Cassiopeiae).

Magnitude, Color, Spectral Class

2.27
Giant

1.16
F2III
7217K

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

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

Star System Properties

Caph is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the Caph double sysyem:

2.27
13.57
11.3
31.3 arcsec

Distance, Radial Speed, Proper Motion

Caph is distant 54.43 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

16.70
54.43
12 km/s
0.525 arcsec/y
-0.181"/y

Alternative Designations

Caph
β Cassiopeiae
(beta Cassiopeiae)
11 Cassiopeiae
SAO21133
SAO21133

Visibility from Your Location

Caph - β Cassiopeiae (beta Cassiopeiae) is circumpolar and transits at 22:54 UTC (altitude: 82.2°)