HD 192699
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquila[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 6.44[1] |
| Characteristics | |
| Evolutionary stage | red giant branch[3][2] |
| Spectral type | G8 IV[4] |
| B−V Template:Engvar | Script error: No such module "val".[1] |
| Astrometry | |
| Proper motion (μ) | RA: −40.884 mas/yr[2] Dec.: −51.962 mas/yr[2] |
| Parallax (π) | 13.7264±0.0290 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 2.36[1] |
| Details[5] | |
| Mass | Script error: No such module "val". Template:Solar mass |
| Radius | Script error: No such module "val". Template:Solar radius |
| Luminosity | 12.26[1] Template:Solar luminosity |
| Surface gravity (log g) | 3.25 cgs |
| Temperature | 5,041 K |
| Metallicity [Fe/H] | −0.12 dex |
| Age | Script error: No such module "val". Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[6] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
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HD 192699 is a star located approximately 238 light-years away in the constellation of Aquila. It has the apparent magnitude of 6.45. Based on its mass of 1.68 solar, it was an A-type star when it was a main-sequence. In April 2007, a planet was announced orbiting the star, together with HD 175541 b and HD 210702 b.[7]
Although the published spectral class of G8 IV suggests that HD 192699 is a subgiant, models of the star suggest it has reached the base of the red giant branch, having developed a degenerate helium core.[2][3]
The star HD 192699 is named Chechia. The name was selected in the NameExoWorlds campaign by Tunisia, during the 100th anniversary of the IAU. Chechia is a flat-surfaced, traditional red wool hat.[8][9]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet
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See also
References
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External links
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