8 Cancri

8 Cancri is a single,^[7] white-hued star in the zodiac constellation of Cancer. It has an apparent visual magnitude of +5.14,^[2] which indicates it is faintly visible to the naked eye under suitable viewing conditions. The distance to this star, as determined from its annual parallax shift of 15.20 mas,^[1] is around 215 light years. A radial velocity of +21 km/s indicates it is moving away from the Sun.^[4]

8 Cancri

Observation data Epoch J2000      Equinox J2000
Constellation	Cancer
Right ascension	08h 05m 04.48834s[1]
Declination	+13° 07′ 05.5757″[1]
Apparent magnitude (V)	+5.14[2]
Characteristics
Spectral type	A1 V[3]
B−V color index	0.018±0.005[2]
Astrometry
Radial velocity (Rv)	+21.0±4.2[4] km/s
Proper motion (μ)	RA: −35.78[1] mas/yr Dec.: −63.81[1] mas/yr
Parallax (π)	15.20±0.32 mas[1]
Distance	215 ± 5 ly (66 ± 1 pc)
Absolute magnitude (MV)	1.05[2]
Details
Mass	2.37[5] M☉
Luminosity	36.6[2] L☉
Surface gravity (log g)	4.29±0.14[5] cgs
Temperature	10,352±352[5] K
Rotational velocity (v sin i)	173[5] km/s
Age	144[5] Myr
Other designations
8 Cnc, BD+13°1831, FK5 2625, GC 10959, HD 66664, HIP 39567, HR 3163, SAO 97542[6]
Database references
SIMBAD	data

This is an A-type main-sequence star with a stellar classification of A1 V.^[3] It is a young star with an estimated age of just 144^[5] million years, and has a high rate of spin with a projected rotational velocity of 173 km/s.^[5] 8 Cancri has 2.37^[5] times the mass of the Sun and is radiating 36.6^[2] times the Sun's luminosity from its photosphere at an effective temperature of around 10,352 K.^[5]