Omicron Cephei

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ο Cep A
Observation data
Epoch J2000
Constellation
(pronunciation)		 Cepheus
Right ascension 23h 18m 37.4928s
Declination +68° 06′ 41.201″'
Apparent magnitude (V) 4.868
Characteristics
Spectral type K0III / G8III / ?
U-B color index 0.49
B-V color index 0.84
Variable type None
Astrometry
Radial velocity (Rv) -18.2 km/s
Proper motion (μ) RA: 54.88 mas/yr
Dec.: 10.91 mas/yr
Parallax (π) 15.48 ± 0.55 mas
Distance 211 ± 7 ly
(65 ± 2 pc)
Absolute magnitude (MV) 5.75
Details
Mass ? M☉
Radius ? R☉
Luminosity ? L☉
Temperature ? K
Metallicity ?
Rotation ?
Age ? years
Other designations
CCDM J23186+6807AB, GC 32463, * omi Cep, * 34 Cep, GSC 04478-01361, HD 219916, HIC 115088, HIP 115088, BD+67° 1514, HR 8872, SAO 20554.
Visual binary orbit
Companion ο Cep B
Period (P) ? yr
Semimajor axis (a) 2.4 arcsec
Eccentricity (e) ?
Visual binary orbit
Companion ο Cep C
Period (P) ? yr
Semimajor axis (a) 45.6 arcsec
Eccentricity (e) ?

ο Cep ,triple star.

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