Lambda2 Sculptoris
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| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Sculptor |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | +5.90[2] |
| Characteristics | |
| Evolutionary stage | red clump[3] |
| Spectral type | K1 III[4] |
| B−V Template:Engvar | +1.15[2] |
| Astrometry | |
| Radial velocity (Rv) | +26.5[5] km/s |
| Proper motion (μ) | RA: +246.29[1] mas/yr Dec.: +120.53[1] mas/yr |
| Parallax (π) | 9.63±0.40 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | +0.82[6] |
| Details | |
| Mass | 1.49[5] Template:Solar mass |
| Radius | 14[7] Template:Solar radius |
| Luminosity | 63[5] Template:Solar luminosity |
| Temperature | Template:Val[5] K |
| Metallicity [Fe/H] | Template:Val[6] dex |
| Age | 3.58[5] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[8] | |
| Database references | |
| SIMBAD | data |
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Lambda2 Sculptoris is an orange-hued star in the southern constellation of Sculptor. On dark nights it is faintly visible to the naked eye, having an apparent visual magnitude of +5.90.[2] Based upon an annual parallax shift of 9.63 mas as measured from Earth,[1] it is located roughly 340 light-years from the Sun. It has a relatively large proper motion, advancing Template:Val per year across the sky.[9]
At an age of about 3.58[5] billion years, Lambda2 Sculptoris is an evolved red-clump[3] giant star with a stellar classification of K0 III.[4] It is presently on the horizontal branch and is generating energy through the nuclear fusion of helium at its core. The star has an estimated 1.49[5] times the mass of the Sun and has expanded to about 14[7] times the Sun's radius. It is radiating 63[5] times the solar luminosity from its photosphere at an effective temperature of Template:Val.[5]
References
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