(kaf )

Beta Cassiopeiae


Distance (Light Years) 54.5 ± 0.5
Apparent Magnitude 2.28
Color (B-V)0.34

Names For This Star

This star is also known as Chaph, Kaff, or Al Sanam al Nakah.

The Arabs sometimes referred to the area of Cassiopeia as Kaff' al Hadib, "The Hand Stained with Henna." The usual name of the star, Caph, derives from this traditional name for the constellation.

Al Sanam al Nakah is "The Camel's Hump," reflecting another traditional version of Cassiopeia as a camel.

Description of the Star

Caph is a yellowish F2III-IV giant to subgiant star. The luminosity is 130 times that of the sun. The spectrum indicates that Caph is a binary star with an orbital period of 27 days, but there is little information available on the companion.

Caph is a variable star of Delta Scuti type as well. The brightness fluctuates by about 0.03 magnitudes with a period of 2.4 hours. See Burnham for a detail discussion of the Delta Scuti stars.

Other Designations For This Star


11 Cassiopeiae

Hipparcos Identifier (HIP Number)


Harvard Revised (HR Number)


Henry Draper Catalog (HD Number)


Bonner Durchmusterung (BD Number)

BD+58 3
Smithsonian Astrophysical
Observatory compendium (SAO Number)

Fundamental Katalog (FK5 Number)



Copyright © 1998 - 2010 by Arnold V. Lesikar,
Professor Emeritus
Dept. of Physics, Astronomy, and Engineering Science,
St. Cloud State University,St. Cloud, MN 56301-4498

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