Pi Sculptoris
Template:Location mark Location of π Sculptoris (circled) | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Sculptor |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 5.25[2] |
| Characteristics | |
| Evolutionary stage | horizontal branch[3] |
| Spectral type | K1II/III[4] |
| U−B Template:Engvar | +0.79[5] |
| B−V Template:Engvar | +1.05[5] |
| Astrometry | |
| Radial velocity (Rv) | Template:Val[1] km/s |
| Proper motion (μ) | RA: −76.714[1] mas/yr Dec.: +4.521[1] mas/yr |
| Parallax (π) | 15.0534±0.1667 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 1.16[2] |
| Details | |
| Mass | 1.52[3] Template:Solar mass |
| Radius | Template:Val[1] Template:Solar radius |
| Luminosity | Template:Val[1] Template:Solar luminosity |
| Surface gravity (log g) | 2.69[3] cgs |
| Temperature | Template:Val[1] K |
| Metallicity [Fe/H] | −0.22[3] dex |
| Rotational velocity (v sin i) | < 1.6[6] km/s |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[7] | |
| Database references | |
| SIMBAD | data |
Script error: No such module "Check for unknown parameters".
π Sculptoris, Latinized as Pi Sculptoris, is candidate astrometric binary[8] star system in the southern constellation Sculptor, positioned near the eastern constellation border with Fornax. It has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.25.[2] Based upon parallax measurements, the system is located at a distance of 66 light years from the Sun, and is drifting further away with a radial velocity of +14 km/s.[1]
The visible component is an aging giant/bright giant star with a stellar classification of K1II/III.[4] It is a red clump giant, which indicates it is on the horizontal branch and is generating energy through core helium fusion.[3] The star has 1.5[3] times the mass of the Sun and 9.3[1] times the Sun's radius. It is radiating 41[1] times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,800 K.[1]
References
- ↑ a b c d e f g h i j k l m Cite error: Invalid
<ref>tag; no text was provided for refs namedGaiaDR2 - ↑ a b c Cite error: Invalid
<ref>tag; no text was provided for refs namedXHIP - ↑ a b c d e f Cite error: Invalid
<ref>tag; no text was provided for refs namedLiu2007 - ↑ a b Cite error: Invalid
<ref>tag; no text was provided for refs namedHouk1982 - ↑ a b Cite error: Invalid
<ref>tag; no text was provided for refs namedMermiliodUBV - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs nameddeMedeiros2014 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedSIMBAD - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedEggleton2008