Kappa2 Sculptoris, Latinized from κ2 Sculptoris, is a solitary,[9] orange-hued star in the southern constellation of Sculptor. It is faintly visible to the naked eye, with a combined apparent visual magnitude of +5.42.[2] Based upon an annual parallax shift of 4.11 mas as measured from Earth,[1] it is located approximately 800 light years from the Sun.
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Sculptor |
| Right ascension | 00h 11m 34.41935s[1] |
| Declination | −27° 47′ 59.0290″[1] |
| Apparent magnitude (V) | +5.42[2] |
| Characteristics | |
| Spectral type | K2 III[3] |
| B−V color index | +1.35[2] |
| Astrometry | |
| Radial velocity (Rv) | −5.6±0.8[4] km/s |
| Proper motion (μ) | RA: +3.42[1] mas/yr Dec.: +19.80[1] mas/yr |
| Parallax (π) | 4.11 ± 0.63 mas[1] |
| Distance | approx. 800 ly (approx. 240 pc) |
| Absolute magnitude (MV) | −1.46[5] |
| Details | |
| Luminosity | 619[6] L☉ |
| Surface gravity (log g) | 2.020[7] cgs |
| Temperature | 4,160[7] K |
| Metallicity [Fe/H] | −0.120[7] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
This is an evolved K-type giant star with a stellar classification of K2 III.[3] It is radiating 619[6] times the solar luminosity from its photosphere at an effective temperature of 4,160.[7] There is a faint optical companion with visual magnitude 21.0 located at an angular separation of 44.2 arc seconds along a position angle of 289°, as of 2010.[10]
References
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