77 Ceti

77 Ceti is a single,^[9] orange-hued star located 498 light years away in the equatorial constellation of Cetus. It is faintly visible to the naked eye, having an apparent visual magnitude of 5.7.^[3] This is an evolved giant star with a stellar classification of K2 III.^[4] It is radiating 239 times the Sun's luminosity from its photosphere at an effective temperature of 4,478 K.^[2]

77 Ceti

Observation data Epoch J2000      Equinox J2000
Constellation	Cetus[1]
Right ascension	02h 34m 42.62364s[2]
Declination	−07° 51′ 34.0026″[2]
Apparent magnitude (V)	5.731[3]
Characteristics
Evolutionary stage	red giant branch[2]
Spectral type	K2 III[4]
U−B color index	+1.68[5]
B−V color index	+1.393±0.008[1]
Astrometry
Radial velocity (Rv)	24.9±2[6] km/s
Proper motion (μ)	RA: +59.658[2] mas/yr Dec.: −63.960[2] mas/yr
Parallax (π)	6.5487±0.0618 mas[2]
Distance	498 ± 5 ly (153 ± 1 pc)
Absolute magnitude (MV)	+0.01[1]
Details
Mass	3.5[2] M☉
Radius	28[2] R☉
Luminosity	239[2] L☉
Surface gravity (log g)	1.99[2] cgs
Temperature	4,478[2] K
Metallicity [Fe/H]	−0.12[7] dex
Age	250[2] Myr
Other designations
BD−08°484, HD 16074, HIP 12002, HR 752, SAO 129984[8]
Database references
SIMBAD	data