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 | Horizontal branch[3] |
| Spectral type | K1 III[4] |
| B−V Template:Engvar | +1.15[2] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[1] km/s |
| Proper motion (μ) | RA: +245.567 mas/yr[1] Dec.: +119.038 mas/yr[1] |
| Parallax (π) | 9.8530±0.0458 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | +0.82[5] |
| Details[6] | |
| Mass | Script error: No such module "val". or Script error: No such module "val".[3] Template:Solar mass |
| Radius | Script error: No such module "val". Template:Solar radius |
| Luminosity | Script error: No such module "val". Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val". cgs |
| Temperature | Script error: No such module "val". K |
| Metallicity [Fe/H] | Script error: No such module "val". dex |
| Age | Script error: No such module "val". or Script error: No such module "val".[3] Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[7] | |
| 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, it is located at a distance of 331 light-years.[1] It has a relatively large proper motion, advancing Script error: No such module "val". per year across the sky.[1]
The spectrum of this star matches a spectral class of K1III,[4] with the luminosity class III indicating it is a giant star that has exhausted the hydrogen at its core. It is now fusing helium, being in the evolutionary stage known as the horizontal branch.[3] Estimates of its mass and age give two different values: 1.12 or 1.26 solar masses and 4.64 or 6.50 billion years.[3] It has expanded to 12.01 times the Sun's radius and radiates 56.7 times the solar luminosity from its photosphere at an effective temperature of Script error: No such module "val"..[6]
References
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- ↑ a b c d e f g Template:Cite DR3
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- ↑ a b c d e Script error: No such module "citation/CS1".
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- ↑ a b Script error: No such module "citation/CS1". Lam2 Scl's database entry at VizieR.
- ↑ Template:Cite simbad
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