WASP-19
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Vela[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 12.312 ± 0.017[3] |
| Characteristics | |
| Spectral type | G8V[4] |
| Apparent magnitude (B) | 13.05[5] |
| Apparent magnitude (R) | 12.12[5] |
| Apparent magnitude (I) | 11.35[5] |
| Apparent magnitude (J) | 10.911 ± 0.026[6] |
| Apparent magnitude (H) | 10.602 ± 0.022[6] |
| Apparent magnitude (K) | 10.481 ± 0.023[6] |
| B−V Template:Engvar | 1.3Script error: No such module "Unsubst". |
| V−R Template:Engvar | 0.1Script error: No such module "Unsubst". |
| R−I Template:Engvar | 0.82Script error: No such module "Unsubst". |
| Variable type | planetary transit |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[2] km/s |
| Proper motion (μ) | RA: Script error: No such module "val". mas/yr[2] Dec.: Script error: No such module "val". mas/yr[2] |
| Parallax (π) | 3.7516±0.0090 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 5.3Script error: No such module "Unsubst". |
| Details[7] | |
| Mass | Script error: No such module "val". 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 |
| Rotation | 11.76±0.09 d[8] |
| Rotational velocity (v sin i) | 4.0 ± 1.0[9] km/s |
| Age | Script error: No such module "val". Gyr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist, USNO-B1.0 0443-00193111[5] | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
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WASP-19, formally named Wattle,[10] is a magnitude 12.3 star about Script error: No such module "convert". away, located in the Vela constellation of the southern hemisphere.[4] This star has been found to host a transiting hot Jupiter-type planet in a tight orbit.
WASP-19 is older than the Sun, has a fraction of heavy elements above the solar abundance, and is rotating rapidly, being spun up by the tides raised by the giant planet on a close orbit.[8]
Nomenclature
The designation WASP-19 indicates that this was the 19th star found to have a planet by the Wide Angle Search for Planets.
In August 2022, this planetary system was included among 20 systems to be named by the third NameExoWorlds project.[11] The approved names were proposed by a team from Brandon Park Primary School in Wheelers Hill (Melbourne, Australia), led by scientist Lance Kelly and teacher David Maierhofer [12] and announced in June 2023. WASP-19 is named "Wattle" and its planet is named "Banksia", after the plant genera Wattle (specifically the golden wattle Acacia pycnantha) and Banksia (specifically the scarlet banksia Banksia coccinea) respectively.[10]
Planetary system
In December 2009, the SuperWASP project announced that a hot Jupiter type exoplanet, WASP-19b, was orbiting very close to this star and with the shortest orbital period of any transiting exoplanet known at the time.[4]
Template:OrbitboxPlanet begin Template:OrbitboxPlanet
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References
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- ↑ a b c d e Template:Cite Gaia DR3
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- ↑ a b c Script error: No such module "Citation/CS1". Vizier catalog entry
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Further reading
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