Sigma3 Cancri

Sigma³ Cancri

Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Cancer
Right ascension	Template:RA
Declination	Template:DEC
Apparent magnitude (V)	+5.24
Characteristics
Evolutionary stage	red clump
Spectral type	G9 III
U−B Template:Engvar	+0.64
B−V Template:Engvar	+0.91
Astrometry
Radial velocity (Rv)	km/s
Proper motion (μ)	RA: −43.78 mas/yr Dec.: −35.03 mas/yr
Parallax (π)	11.03±0.28 mas
Distance	Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)	0.45
Details
Mass	Template:Solar mass
Radius	10.32 Template:Solar radius
Luminosity	72 Template:Solar luminosity
Surface gravity (log g)	3.18 cgs
Temperature	K
Metallicity [Fe/H]	dex
Rotational velocity (v sin i)	km/s
Age	Myr
Metallicity [Fe/H]	{{{metal_fe2}}} dex
Other designations
Template:Odlist
Database references
SIMBAD	data

Sigma³ Cancri (σ³ Cancri) is a solitary, yellow-hued star in the zodiac constellation of Cancer. With an apparent visual magnitude of +5.24, it is a dim star that is visible to the naked eye. Based upon an annual parallax shift of 11.03 mas as seen from Earth, it is located around 296 light years from the Sun. The star's proper motion makes it a candidate for membership in the IC 2391 supercluster.

This is an evolved, G-type giant star with a stellar classification of G9 III. At the estimated age of 420 million years it is a red clump star on the horizontal branch, which indicates it is generating energy through helium fusion at its core. Sigma³ Cancri has 2.8 times the mass of the Sun and has expanded to 10.3 times the Sun's radius. It is radiating 72 times the solar luminosity from its photosphere at an effective temperature of 5,170 K.