extrasolar planet

(redirected from Extrasolar systems)

extrasolar planet

(eks-tră-soh -ler) See planet.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

extrasolar planet

[¦ek·strə¦sō·lər ′plan·ət]
(astronomy)
A planet in orbit about a star other than the sun. Also known as exoplanet.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Besides determining Earth's origins, the study led by a team from the University of California Davis could also help in identifying extrasolar systems that could support habitable planets.
"This model suggests that the inevitable formation of water would likely occur on any sufficiently large rocky exoplanets in extrasolar systems," Wu said.
The newcollection suggests that lighter planets are more common in extrasolar systems than heavier Jupiter-like ones.
These mutual perturbations can change the orbits, as we see in these extrasolar systems," Rasio said.
Dr Smith added: "Extrasolar systems are far more diverse than we expected, and that means very few are likely to support life.
"If a system is like our own," says Phil Hinz (Steward Observatory), "it will have dust due to periodic collisions of asteroids, and we will be able to detect such a signature around another star if the dust is only slightly brighter than the dust in our own solar system." Done in cooperation with NASA, this so-called Nulling InfraRed survey of Extrasolar Systems for TPF, or NIREST (as in the nearest stars) will help refine observing strategies for the proposed Terrestrial Planet Finder mission.
He said that the new findings had motivated him to look at other extrasolar systems with similar kinds of unexplained radial velocity data, to see if other stars or planets may be lurking there.
Resonances also exist in numerous extrasolar systems discovered over the past 10 years.