WASP-18

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Star
WASP-18
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Phoenix
Right ascension 01 h 37 m 25.03 s
declination -45 ° 40 ′ 40.4 ″
Apparent brightness 9.28 likes
Typing
Known exoplanets 1
B − V color index +0.44 
Spectral class F6 IV / V
Variable star type EP 
Astrometry
Radial velocity (4.09 ± 0.56) km / s
parallax (8.07 ± 0.02)  mas
distance (404 ± 1)  Ly
(124)  pc
Visual absolute brightness M vis +4.29 mag
Proper movement 
Rec. Share: (25.24 ± 0.03)  mas / a
Dec. portion: (20.60 ± 0.03)  mas / a
Physical Properties
Dimensions (1.24 ± 0.04)  M ☉
radius (1.23 ± 0.05)  R ☉
Luminosity

(1.6 ± 0.5)  L ☉

Effective temperature (6400 ± 100)  K.
Metallicity [Fe / H] (0.0)
Age (0.63 ± 0.53) bill.  A
Other names
and catalog entries
Cordoba Survey CD -46 ° 449
Henry Draper Catalog HD 10069 [1]
Hipparcos catalog HIP 7562 [2]
SAO catalog SAO 215585 [3]
Tycho catalog TYC 8040-72-1 [4]
2MASS catalog 2MASS J01372503-4540404 [5]
Other names WASP-18
annotation
  1. ↑ Calculated from apparent brightness and distance.

WASP-18 is a star with an apparent visual magnitude of 9.3 mag in the constellation Phoenix .

The planetary system

In 2009 it was announced in the SuperWASP project that a very large exoplanet (10 Jupiter masses ) of the Hot Jupiter type exists, which was named WASP-18b and orbits the central star in a very close orbit with an orbital period of less than 1 day.

See also

Individual evidence

  1. ↑ a b c Hipparcos catalog (ESA 1997)
  2. ↑ a b c d HD 10069. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on November 9, 2019 .
  3. ^ WASP-18. In: VSX. AAVSO , accessed November 9, 2019 .
  4. ↑ a b c d e WASP-18 b. In: Extrasolar Planets Encyclopaedia . Retrieved November 9, 2019 .
  5. ↑ WASP-18 ( Memento of the original from June 18, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / nsted.ipac.caltech.edu
  6. ↑ An orbital period of 0.94 days for the hot-Jupiter planet WASP-18b . In: Nature . 460, 2009 - 08-27 , pp. 1098-1100. doi : 10.1038 / nature08245 .