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WASP-13 Facts

Location of WASP-13

The location of the main sequence 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-13, the location is 09h 20m 25.00 and 33° 52` 57.00 .

Physical Properties (Colour, Metallicity) of WASP-13

WASP-13 Colour and Temperature

WASP-13 has a spectral type of G1V. This means the star is a yellow main sequence star.

The star's metallicity is 0.200000, 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-13 Apparent and Absolute Magnitudes

WASP-13 has an apparent magnitude of 10.42 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 4.45 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-13

The Parallax of the star is given as 6.41 which gives a calculated distance to WASP-13 of 508.81 light years from the Earth or 156.00 parsecs. It would take a spaceship travelling at the speed of light, 508.81 years to get there. We don't have the technology or spaceship that can carry people over that distance yet.

The star is roughly 32,177,085.56 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-13 Facts and Figures

Visual Facts

Primary / Proper / Traditional NameWASP-13
Spectral TypeG1V
Constellation's Main StarNo
Multiple Star SystemNo / Unknown
Star Type Main Sequence Dwarf Star
GalaxyMilky Way
Visual / Apparent Magnitude10.42
Naked Eye VisibleRequires a 4.5 - 6 Inch Telescope - Magnitudes
Right Ascension (R.A.)09h 20m 25.00
Declination (Dec.)33° 52` 57.00
Distance from Earth6.41 Parallax (milliarcseconds)
 508.81 Light Years
 156.00 Parsecs
 32,177,085.56 Astronomical Units

Companions (Multi-Star and Exoplanets) Facts

Exoplanet Count1

Sources and Links


List of Extrasolar Planets orbiting WASP-13

NameStatusMass (Jupiters)Orbital Period (Days)EccentricityDiscoveredSemi-Major AxisPeriastronInclination
WASP-13 bConfirmed0.0584.3530.020080.0537985.640

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