Pi Cassiopeiae

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π Cassiopeiae
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Cassiopeia
Right ascension 00h43m28.1s
Declination +47°01′29″
Apparent magnitude (V) +4.95
Spectral type A5V
U−B color index +0.09
B−V color index +0.18
Variable type Rotating ellipsoid
Radial velocity (Rv) +013 km/s
Proper motion (μ) RA: −24.52 mas/yr
Dec.: −37.16 mas/yr
Parallax (π) 18.71 ± 0.73 mas
Distance 174.3 ly
(53.4 pc)
Absolute magnitude (MV) +1.31
Other designations
20 Cassiopeiae, HR 184, HD 4058, BD+46°146, HIP 3414, SAO 36602, GC 856
Map of the Bayer-designated stars in Cassiopeia. Pi Cassiopeiae is circled.

Pi Cassiopeiae (π Cas, π Cassiopeiae) is a star in the constellation Cassiopeia.

π Cassiopeiae is a white A-type main sequence dwarf with a mean apparent magnitude of +4.95. It is approximately 174.3 light years from Earth. It is classified as a rotating ellipsoidal variable star and its brightness varies by 0.02 magnitudes with a period of 23.57 hours.