Universe Guide



WASP-12 is a star that can be located in the constellation of Auriga.

Location of WASP-12

The location of the star in the galaxy 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 star is compared to the celestial equator and is expressed in degrees. For WASP-12, the location is 06h 30m 33 and 12d40`20 .

Physical Properties (Metallicity, Mass, Radius) of WASP-12

WASP-12 has been calculated as 1.57 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 1,092,406.00.km. The star's solar mass is 1.35 times that of the Sun's. The Sun's Mass is 1,989,100,000,000,000,000,000 billion kg. which to calculate using this website is too large. To give idea of size, the Sun is 99.86% the mass of the solar system.

The star's metallicity is 0.300000, this value is the fractional amount of the star that is not Hydrogen (X) or Helium (Y). An older star would have a high metallicity whereas a new star would have a lower one.

WASP-12 Apparent and Absolute Magnitudes

WASP-12 has an apparent magnitude of 11.69 which is how bright we see the star from Earth. Apparent Magnitude is also known as Visual Magnitude. Magnitude, whether it be apparent/visual or absolute magnitude is measured by a number, the smaller the number, the brighter the Star is. Our own Sun is the brightest star and therefore has the lowest of all magnitudes, -26.74. A faint star will have a high number.

Source of Information

The source of the information if it has a Hip I.D. is from Simbad, the Hipparcos data library based at the University at Strasbourg, France. Hipparcos was a E.S.A. satellite operation launched in 1989 for four years. The items in red are values that I've calculated so they could well be wrong. Information regarding Stellar Age, Metallicity or Mass is from the E.U. Exoplanets. The information was obtained as of 12th Feb 2017.

WASP-12 Facts

Alternative Names

Traditional NameWASP-12

Visual Facts

Star Type star
Apparent Magnitude11.69
Right Ascension (R.A.)06h 30m 33
Declination (Dec.)12d40`20
Distance from the Sun / Earth0.00 Light Years
Semi-Major Axis0.02
Orbital Period (Days)1.09
Argument Of Periastron-74.00

Estimated Facts

Radius (x the Sun)1.57
Calculated Effective Temperature6,300 Kelvin
Mass Compared to the Sun1.35

Sources and Links

SIMBAD SourceLink

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