F Centauri
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | +5.01[2] |
| Characteristics | |
| Spectral type | M1III[3] |
| B−V Template:Engvar | Script error: No such module "val".[2] |
| Variable type | suspected[4] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[2] km/s |
| Proper motion (μ) | RA: -79.258[1] mas/yr Dec.: -15.215[1] mas/yr |
| Parallax (π) | 7.3256±0.1919 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −0.87[2] |
| Details | |
| Radius | Script error: No such module "val".[1] Template:Solar radius |
| Luminosity | Script error: No such module "val".[1] Template:Solar luminosity |
| Temperature | Script error: No such module "val".[1] K |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[5] | |
| Database references | |
| SIMBAD | data |
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F Centauri is a suspected astrometric binary[6] star system in the southern constellation of Centaurus. It has a reddish hue and is visible to the naked eye with an apparent visual magnitude that fluctuates around +5.01.[2] The system is located at a distance of approximately 450 light years from the Sun based on parallax, and it has an absolute magnitude of −0.87.[2] O. J. Eggen flagged this star as a member of the Hyades Supercluster.[7]
The visible component is an aging red giant star on the asymptotic giant branch[8] with a stellar classification of M1III,[3] indicating it has exhausted the supply of both hydrogen and helium at its core and is cooling and expanding. It is a suspected variable star of unknown type that has been measured ranging in brightness from visual magnitude 4.94 down to 5.07.[4] At present it has 48 times the radius of the Sun. It is radiating 502 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 3,948 K.[1]
References
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- ↑ Template:Cite simbad
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