WASP-19 is a
magnitude 12.3
star
A star is an astronomical object comprising a luminous spheroid of plasma held together by its gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night, but their immense distances from Earth make ...
located in the
Vela
Vela or Velas may refer to:
Astronomy
* Vela (constellation), a constellation in the southern sky (the Sails)
** Vela (Chinese astronomy)
** Vela Pulsar
** Vela X-1, a pulsing, eclipsing high-mass X-ray binary system
Places
* Vela Bluff, Antarc ...
constellation of the
southern hemisphere.
This star has been found to host a transiting
hot Jupiter
Hot Jupiters (sometimes called hot Saturns) are a class of gas giant exoplanets that are inferred to be physically similar to Jupiter but that have very short orbital periods (). The close proximity to their stars and high surface-atmosphere temp ...
-type planet in tight orbit.
The WASP-19 is older than Sun, has fraction of heavy elements above solar abundance, and is rotating rapidly, being spun up by the tides raised by the giant planet on the close orbit.
Planetary system
In December 2009 SuperWASP
WASP or Wide Angle Search for Planets is an international consortium of several academic organisations performing an ultra-wide angle search for exoplanets using transit photometry. The array of robotic telescopes aims to survey the entire sky, ...
project announced that a hot Jupiter
Hot Jupiters (sometimes called hot Saturns) are a class of gas giant exoplanets that are inferred to be physically similar to Jupiter but that have very short orbital periods (). The close proximity to their stars and high surface-atmosphere temp ...
type extrasolar planet
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...
, WASP-19b, was orbiting very close to this star and with the shortest orbital period so far detected.NameExoWorlds
NameExoWorlds (also known as IAU NameExoWorlds) is the name of various projects managed by the International Astronomical Union (I.A.U.) to encourage names to be submitted for astronomical objects, which would later be considered for official ad ...
project.
See also
* List of extrasolar planets
These are lists of exoplanets. Most of these were discovered by the Kepler space telescope. There are an additional 2,054 potential exoplanets from Kepler's first mission yet to be confirmed, as well as 978 from its " Second Light" mission and ...
References
G-type main-sequence stars
Vela (constellation)
Planetary systems with one confirmed planet
Planetary transit variables
J09534008-4539330
19
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