Kappa Cancri
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cancer |
| Right ascension | 09h07m44.8s |
| Declination | +10°40′05″ |
| Apparent magnitude (V) | +5.23 |
| Distance | 484 ± 65 ly (148 ± 20 pc) |
| Spectral type | B8IIIpMn |
| Other designations | |
Kappa Cancri (κ Cnc, κ Cancri) is a star in the constellation Cancer.
κ Cancri is a blue-white B-type giant with a mean apparent magnitude of +5.23. It is approximately 484 light years from Earth. It is classified as an Alpha2 Canum Venaticorum type variable star and its brightness varies from magnitude +5.22 to +5.27 with a period of 5 days.
This is a spectroscopic binary star system with an orbital period of 6.39 days an eccentricity of 0.14. The primary component has 4.5 times the mass of the Sun, 5 times the Sun's radius, and an effective temperature of 13,200 K. The secondary is a smaller star with 2.1 times the mass and 2.4 times the radius of the Sun, having an effective temperature of 8,500 K.[1]
References
- ↑ Ryabchikova, T. (April 1998), "Abundance analysis of SB2 binary stars with HgMn primaries", Contributions of the Astronomical Observatory Skalnate Pleso, 27 (3): 319–323, arXiv:astro-ph/9805063
, Bibcode:1998CoSka..27..319R
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