Caph - β Cassiopeiae (beta Cassiopeiae)
Caph, also designated as β Cassiopeiae (beta Cassiopeiae), is a variable and double giant star in the constellation of Cassiopeia.
Caph visual magnitude is 2.27, making it the 73th brightest star in the sky. Thanks to its high brightness, Caph is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.
The table below summarizes the key facts about Caph:
Celestial coordinates and finder chart of Caph
Caph is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Caph are provided in the following table:
The simplified sky map below shows the position of Caph in the sky:
Visibility of Caph from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Caph - β Cassiopeiae (beta Cassiopeiae) is circumpolar and transits at 11:46 UTC (altitude: 82.3°)
Digitized Sky Survey image of Caph
The image below is a photograph of Caph from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of Caph is 0.525 arcsec per year in Right Ascension and -0.181 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Caph from the Sun and relative movement
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.
Spectral properties of Caph
Caph belongs to spectral class F2 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where Caph is situated in the Hertzsprung–Russell diagram.
Caph 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: