34 Cancri is a star in the zodiac constellation of Cancer, located about 568 light years away from the Sun.[1] It is a challenge to view with the naked even under good viewing conditions, having an apparent visual magnitude of 6.48.[2] At the distance of this star, its visual magnitude is diminished by an extinction of 0.14 due to interstellar dust.[8]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Cancer |
Right ascension | 08h 32m 39.87069s[1] |
Declination | +10° 03′ 57.6306″[1] |
Apparent magnitude (V) | 6.48[2] |
Characteristics | |
Spectral type | A1 V[3][4] |
B−V color index | −0.007±0.007[2] |
Astrometry | |
Radial velocity (Rv) | −11.0±7.4[5] km/s |
Proper motion (μ) | RA: +4.517[1] mas/yr Dec.: −6.139[1] mas/yr |
Parallax (π) | 5.7408 ± 0.0912 mas[1] |
Distance | 568 ± 9 ly (174 ± 3 pc) |
Absolute magnitude (MV) | 0.40[2] |
Details | |
Mass | 2.67±0.09[6] M☉ |
Radius | 2.7[7] R☉ |
Luminosity | 69.84[2] L☉ |
Temperature | 9,661±111[6] K |
Rotational velocity (v sin i) | 18[6] km/s |
Age | 336[2] Myr |
Other designations | |
Database references | |
SIMBAD | data |
This is an A-type main-sequence star with a stellar classification of A1 V.[3] It is a chemically peculiar star, possibly of the magnetic-type (CP2), showing an abnormal abundance of strontium.[9] The star is an estimated 336[2] million years old with only a moderate projected rotational velocity of 18 km/s.[6] It has an estimated 2.7[6] times the mass of the Sun and about 2.7[7] times the Sun's radius. The star is radiating 70[2] times the Sun's luminosity from its photosphere at an effective temperature of 9,661 K.[6]