exoplanet


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exoplanet

or

extrasolar planet,

a planet located outside the solar system. See planetplanet
[Gr.,=wanderer], a large nonluminous body of rock or gas that orbits the sun or another star, has a rounded shape due to gravity, and has cleared its orbit of smaller objects.
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; planetary systemplanetary system,
a star and all the celestial bodies bound to it by gravity, especially planets and their natural satellites. Until the last decade of the 20th cent., the only planetary system known was the solar system, which comprises the sun and the surrounding planets,
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.

exoplanet

[‚ek·sō′plan·ət]
(astronomy)
References in periodicals archive ?
Fifty might not sound like an impressive number, but these 50 exoplanets will be the list of most promising transiting planets for further study, a list of planets that with follow-up observations will ultimately tell us a lot about the small-exoplanet population.
It is given a closer look before it is confirmed to be an exoplanet - but the task is not an easy one as scientists must differentiate between signals from a candidate and signals from other spacecraft.
The upcoming launches of missions like NASA's James Webb Space Telescope and Transiting Exoplanet Survey Satellite should further our understanding.
In the past, Barnes said, researchers tended to use that 12-hour estimation of Earth's rotation period to model exoplanet behaviour, asking, for example, how long an Earthlike exoplanet with a similar orbital spin might take to become tidally locked.
But by using pressure from light particles from the sun to stay oriented, the telescope has been refashioned for a second exoplanet search project called K2.
Meanwhile, in a separate release, NASA confirmed that it used a technique known as microlensing to locate the exoplanet.
Perhaps some were so disappointed by the false alarm in 2012, when another group claimed to have found an exoplanet in the Alpha Centauri system, no one wanted to get their hopes up.
Most of the smaller and colder exoplanets remain invisible for telescopes on earth.
We were able to observe the first, last quarters, new and full phases of this small exoplanet," said Demory.
The Kepler space mission telescope also has spotted a few thousand exoplanet candidates, of which more than 10% may turn out to be false-positives.
Dubbed a "mega-Earth," the exoplanet Kepler-10c weighs 17 times as much as Earth and it circles a sunlike star in the constellation Draco.
They will not lead to an officially-recognised exoplanet name, despite the price paid or the number of votes accrued.