Universe Guide


WASP-20 Facts

  • WASP-20 is a star that can be located in the constellation of Cetus. The description is based on the spectral class.
  • WASP-20 is not part of the constellation outline but is within the borders of the constellation.
  • The star can not be seen by the naked eye, you need a telescope to see it.
  • It is calculated at being 7.000 Billion Years old. This information comes from ExoPlanet.
  • WASP-20 has at least 1 Extrasolar Planets believed to be in orbit around the star.
  • WASP-20 has a radius that is 1.39 times bigger than the Suns. Radius
  • The star is calculated at being about 684.94 light years away from us. Distance

Location of WASP-20

The location of the star in the night sky is determined by the Right Ascension (R.A.) and Declination (Dec.), these are equivalent to the Longitude and Latitude on the Earth. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the object is compared to the celestial equator and is expressed in degrees. For WASP-20, the location is 00h 20m 38.54 and -23° 56` 08.57 .

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Additional WASP-20 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameWASP-20
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
GalaxyMilky Way
Age7.00 Billion Years Old
Visual / Apparent Magnitude10.68
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)00h 20m 38.54
Declination (Dec.)-23° 56` 08.57
Distance from Earth4.76190 Parallax (milliarcseconds)
 684.94 Light Years
 210.00 Parsecs
 43,315,307.49 Astronomical Units

Companions (Multi-Star and Exoplanets) Facts

Exoplanet Count1

Estimated Calculated Facts

Radius (x the Sun)1.39
Calculated Temperature Range0.00 - 0.00

Sources and Links


List of Extrasolar Planets orbiting WASP-20

NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastronInclination
WASP-20 bConfirmed0.0184.9000.020110.0600385.570

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