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单词 fixed star
释义

fixed star


fixed star

n. A star or nebula that appears to remain in constant position relative to other celestial bodies, in contrast with celestial bodies such as the planets in our solar system, whose changes in position relative to the stars are readily observable by telescope or the unaided eye. All stars except the sun are considered fixed stars.

fixed star

n 1. (Astronomy) any of the stars in the Ptolemaic system, all of which were thought to be attached to an outer crystal sphere thus explaining their apparent lack of movement 2. (Astronomy) an extremely distant star whose position appears to be almost stationary over a long period of time

fixed′ star′


n. any of the stars that apparently always retain the same position in respect to one another. [1555–65]

fixed star

(fĭkst) A star so distant from Earth that its position in relation to other stars appears not to change. Its movements can be measured only by precise observations over long periods of time. Sirius is a fixed star.
Thesaurus
Noun1.fixed star - any star in the Ptolemaic theory of planetary motionstar - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
Translations

fixed star


fixed star

1. any of the stars in the Ptolemaic system, all of which were thought to be attached to an outer crystal sphere thus explaining their apparent lack of movement 2. an extremely distant star whose position appears to be almost stationary over a long period of time

fixed star

[¦fikst ′stär] (astronomy) A misnomer to indicate those stars which kept apparently the same position with respect to other stars, in contrast to the planets which were termed wandering stars.

fixed star

fixed starThe lower section of a swash plate in a helicopter rotor system that helps tilt the rotor blades. It is the nonrotating portion of the swash plate and is controlled by the cyclic controls.

fixed star


  • noun

Words related to fixed star

noun any star in the Ptolemaic theory of planetary motion

Related Words

  • star
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更新时间:2024/12/23 23:20:15