Kappa Pictoris
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Pictor |
| Right ascension | 05h 22m 22.14661s[1] |
| Declination | −56° 08′ 03.8409″[1] |
| Apparent magnitude (V) | +6.11[2] |
| Characteristics | |
| Spectral type | B8/9 V[3] |
| B−V color index | −0.10[2] |
| Astrometry | |
| Radial velocity (Rv) | −5.0±7.4[4] km/s |
| Proper motion (μ) | RA: −5.03[1] mas/yr Dec.: +22.01[1] mas/yr |
| Parallax (π) | 5.14±0.25 mas[1] |
| Distance | 630 ± 30 ly (195 ± 9 pc) |
| Absolute magnitude (MV) | +0.34[5] |
| Details[6] | |
| Mass | 3.42±0.07 M☉ |
| Luminosity | 210 L☉ |
| Temperature | 11,641 K |
| Rotational velocity (v sin i) | 264 km/s |
| Age | 256[5] Myr |
| Other designations | |
| κ Pic, CPD−56°840, FK5 2403, HD 35580, HIP 25098, HR 1801, SAO 233952[7] | |
| Database references | |
| SIMBAD | data |
κ Pictoris, Latinised as Kappa Pictoris, is a star in the constellation Pictor. It is close to the lower limit of stars that are visible to the naked eye having an apparent visual magnitude of +6.11.[2] Based upon an annual parallax shift of 5.14 mas as seen from Earth,[1] this star is located around 630 light years from the Sun. At that distance, the visual magnitude is diminished by an extinction factor of 0.10 due to interstellar dust.[5]
This is a B-type main sequence star with a stellar classification of B8/9 V.[3] It is about 76.4% of the way through its main sequence lifespan.[6] The star is spinning rapidly with a projected rotational velocity of 264 km/s.[6] It has an estimated 3.4 times the mass of the Sun and is radiating 210 times the Sun's luminosity from its photosphere at an effective temperature of 11,641 K.[6]
References
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