giant planets

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Related to gas giant: Saturn

giant planets

The planets Jupiter, Saturn, Uranus, and Neptune, which have diameters between 3.9 and 11.2 times that of the Earth and masses of between 14 and 318 Earth masses. They orbit the Sun at mean distances ranging from 5.21 AU for Jupiter to 30.06 AU for Neptune in periods from 11.86 to 164.79 years. All have low densities – from 0.7 to 1.8 times that of water – and are probably composed largely of hydrogen in its molecular or metallic state. Their visible surfaces are thought to be clouds of ammonia or methane. They all have planetary ring systems and share at least 150 satellites between them (see Table 2, backmatter).
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

giant planets

[¦jī·ənt ′plan·əts]
(astronomy)
The planets Jupiter, Saturn, Uranus, and Neptune.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
EDT) on May 29 while making its 20th science pass of the gas giant. 
Summary: TEHRAN (FNA)- A survey of 300 stars in search of exoplanets finds that massive, Jupiter-like gas giants are found just about where Jupiter is in our own solar system.
Its main objective is to peer into the gas giant planet, giving scientists a much better idea of the internal structure of Jupiter and also how the Solar System formed 4.5billion years ago.
Even though the gas giant is relatively large -- compared to many other planets in the universe -- and also has a less than cozy climate with temperatures of 1,070 degrees Fahrenheit (550 Celsius), the astronomers consider it rather small and cold for his class.
These results shed more light on the atmospheres of gas giants, and will provide important context for the Juno spacecraft, which is scheduled to arrive at Jupiter in July 2016.
Caption: Subtle vibrations in Saturn's rings are helping scientists explore the structure of the gas giant's interior.
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The European Commission, the EU's executive arm, in September launched a probe into three suspected violations of anti-monopoly regulations by Russia's gas giant in Central and Eastern Europe, which could affect Gazprom's $60 billion gas export business in Europe.
Russian President Vladimir Putin chastised, on 9 September, the European Union's 'non-constructive approach' after the European Commission opened an investigation, on 4 September, into the gas giant Gazprom, suspected of hindering competition on Central and Eastern European gas markets.