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单词 aphelion
释义
aphelion
noun[CorU]
physicsspecialized
uk
/æfˈiː.li.ən/us
/æfˈiː.li.ən/
pluralapheliauk/æfˈiː.li.ə/us/æfˈiː.li.ə/
thepointin an object'sorbit(= acurvedpathinspacearound aplanetorstar)around thesunat which theobjectisfurthestfrom thesun:
远日点（与太阳相距最远的点）
On 6Julythisyear, we will be at aphelion.今年的7月6日，我们将处于远日点。
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Opposite

perihelion
(Definition ofaphelionfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofaphelion

aphelion
The general shape of the diurnal profiles between perihelion andaphelionare similar, but dose values vary markedly.
From theCambridge English Corpus
Also, since perihelion andapheliondo not happen on exactly the same dates as the solstices, the maxima and minima are slightly asymmetrical.
From
Wikipedia
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Increasing the eccentricity lengthens the time spent nearaphelionand shortens the time near perihelion.
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The figure illustrates the effects of precession on the northern hemisphere seasons, relative to perihelion andaphelion.
From
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Meanwhile, the planet is approachingaphelion, and nobody is entirely certain that it is in a stable orbit around the sun.
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Wikipedia
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The images below show the perihelion (green dot) andaphelion(red dot) points of the inner and outer planets.
From
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Orbital eccentricity is represented by segments extending horizontally from perihelion toaphelion; inclination is shown on the vertical axis.
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When the orbit is at its most elliptical, the amount of solar radiation at perihelion will be about 23% more than ataphelion.
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It is the opposite ofaphelion, which is when the orbit of the object is farthest from the sun.
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Duringaphelionwater ice clouds form in the atmosphere, interacting with the dust particles and affecting the temperature of the planet.
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Dust storms are most common during perihelion, when the planet receives 40 percent more sunlight than duringaphelion.
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Given the orbital eccentricity of this object, different epochs can generate quite different heliocentric unperturbed two-body best-fit solutions to theapheliondistance (maximum distance) of this object.
From
Wikipedia
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Given the extreme orbital eccentricity of this object, different epochs can generate quite different heliocentric unperturbed two-body best-fit solutions to theapheliondistance (maximum distance) of this object.
From
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The hemisphere that is in summer at perihelion receives much of the corresponding increase in solar radiation, but that same hemisphere in winter ataphelionhas a colder winter.
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On a very long time scale, the dates of the perihelion and of theaphelionprogress through the seasons, and they make one complete cycle in 22,000 to 26,000 years.
From
Wikipedia
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/aphelion##
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更新时间：2024/12/28 15:14:44