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WASP-12 Facts

Location of WASP-12

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-12, the location is 06h 30m 33.00 and 29° 40` 20.00 .

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

WASP-12 has a spectral type of G0. This means the star is a white to yellow star.

WASP-12 has been calculated as 1.60 times bigger than the Sun.The Sun's radius is 695,800km, therefore the star's radius is an estimated 1,112,584.20.km. If you need the diameter of the star, you just need to multiple the radius by 2. 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 0.100000, 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.

The star is believed to be about 1.70 Billion years old. To put in context, the Sun is believed to be about five billion years old and the Universe is about 13.8 billion years old.

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. Using the supplied Parallax value, you would get an absolute magnitude of 3.54 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.

Distance to WASP-12

The Parallax of the star is given as 2.34 which gives a calculated distance to WASP-12 of 1392.73 light years from the Earth or 427.00 parsecs. It would take a spaceship travelling at the speed of light, 1392.73 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 88,074,458.56 Astronomical Units from the Earth/Sun give or take a few. An Astronomical Unit is the distance between Earth and the Sun. The number of A.U. is the number of times that the star is from the Earth compared to the Sun.

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Additional WASP-12 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameWASP-12
Spectral TypeG0
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star TypeStar
ColourWhite to Yellow
GalaxyMilky Way
Age1.70 Billion Years Old
Visual / Apparent Magnitude11.69
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)06h 30m 33.00
Declination (Dec.)29° 40` 20.00
Distance from Earth2.34 Parallax (milliarcseconds)
 1392.73 Light Years
 427.00 Parsecs
 88,074,458.56 Astronomical Units
Orbital Period (Days)1.09
Argument Of Periastron-74.00

Companions (Multi-Star and Exoplanets) Facts

Exoplanet Count1

Estimated Calculated Facts

Radius (x the Sun)1.60
Effective Temperature6,300 Kelvin
Mass Compared to the Sun1.35

List of Extrasolar Planets orbiting WASP-12

NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastronInclination
WASP-12 bConfirmed0.0991.0910.020080.0229386.000

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