Delta Cassiopeiae

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δ Cassiopeiae
Observation data
Epoch J2000.0
Constellation
(pronunciation)
Cassiopeia
Right ascension 01h25m49.0s
Declination +60°14′07″
Apparent magnitude (V) +2.66
Distance 99.4 ± 1.9 ly
(30.5 ± 0.6 pc)
Spectral type A5III-IV
Other designations
Ruchbah, Ksora, Rucha, Rucba, Rukba, 37 Cassiopeiae, HR 403, HD 8538, BD+59°248, FK5 48, HIP 6686, SAO 22268, GC 1715, CCDM J01259+6014

Delta Cassiopeiae (δ Cas / δ Cassiopeiae) is a star in the constellation Cassiopeia. It also has the traditional names Ksora and Ruchbah, derived from an Arabic word ركبة rukbah meaning "knee".

Delta Cassiopeiae is an eclipsing binary with a period of 759 days. Its apparent magnitude varies between +2.68 mag and +2.74 with a period of 759 days. It is of spectral class A3, and is approximately 99 light years from Earth.