Pi Cassiopeiae

π Cassiopeiae
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Cassiopeia
Right ascension 00h 43m 28.070s[1]
Declination +47° 01 28.37[1]
Apparent magnitude (V) +4.95
Characteristics
Spectral type A5V
U−B color index +0.09
B−V color index +0.18
Variable type Rotating ellipsoid
Astrometry
Radial velocity (Rv)+013 km/s
Proper motion (μ) RA: −23.71 ± 0.23[1] mas/yr
Dec.: −36.84 ± 0.18[1] mas/yr
Parallax (π)18.63 ± 0.32[1] mas
Distance175 ± 3 ly
(53.7 ± 0.9 pc)
Absolute magnitude (MV)+1.31
Other designations
20 Cassiopeiae, HR 184, HD 4058, BD+46°146, HIP 3414, SAO 36602
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 175 light years from Earth.[1] It is classified as a rotating ellipsoidal variable star and its brightness varies by 0.02 magnitudes with a period of 23.57 hours.

References