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planetary system

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planetary system

A system of planets and other bodies, such as comets and meteoroids, that orbits a star. The Sun and its planetary system together comprise the Solar System. Planetary systems may be common in the Galaxy, being formed along with stars from the gravitational contraction of interstellar clouds of gas and dust. See also planet pulsar; protoplanet.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
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References in classic literature
They considered the moon alone to be inhabited: they imagined it was the real heart of the universe or planetary system, on which the genuine Cosmopolites, or citizens of the world, dwelt.
Your readers will possibly comprehend that the Atlantic, in this parable, stands for the mighty ocean of ether through which we drift and that the bunch of corks represents the little and obscure planetary system to which we belong.
Kalas and De Rosa gathered Gaia information on 461 stars in the same cluster as HD 106906 and calculated their positions backward in time -- reversed the cosmic clock, so to speak -- and discovered that another binary star system may have approached close enough 3 million years ago to alter the planetary system.
When its path to us is calculated back in time, it doesn't lead to any nearby planetary system, but such calculations assume that only gravity was affecting it.
However, a different approach [2] called quantum celestial mechanics (QCM) offers the potential ability to predict the existence of additional angular momentum in the planetary system, which could indicate additional planets to be detected or additional mass in the form of rings or spherical shells of mass chunks orbiting the star, such as the Kuiper belt or the Oort Cloud in our Solar System.
The work by Dr Kipping, his Columbia colleague Alex Teachey and citizen scientist Allan R Schmitt, assigns a confidence level of four sigma to the signal from the distant planetary system. The confidence level describes how unlikely it is that an experimental result is simply down to chance.
The interplanetary bounty hunters Dutch (Hannah John-Kamen), Johnny (Aaron Ashmore) and D'avin (Luke Macfarlane) continue to pursue deadly warrants to protect the Quad, their planetary system, in the new season of 'Killjoys,' airing every Thursday at 9:45 p.m.
Synopsis: Profusely and beautifully illustrated throughout, "Planet Earth: The Practical Guide To Earth" by former NASA scientist David Baker provides factual information explaining the physical world in which we live by first setting the Earth within the context of the planetary system which orbits the Sun.
A team of astronomers using ground-based telescopes has discovered a planetary system orbiting a nearby star that is only 54 light-years away.
RIO DE JANEIRO, July 16 (PNA/Xinhua) -- Brazilian scientists have led the discovery of a new Jupiter-like planet that raises the possibility of a second planetary system like ours, Brazil's G1 news website reported Wednesday.
This unprecedented image of a nascent planetary system comes from the Atacama Large Millimeter/submillimeter Array, or ALMA, a network of several dozen radio dishes located in the high-elevation desert of northern Chile.
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