sidereal
sidereal 英 [saɪˈdɪəriəl] 美 [saɪˈdɪriəl]
adj. [天] 恒星的；根据星球运行测定的
- Far out, man. I mean really far out — as in related to the distant stars of the universe. That's what sidereal means.
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- adj. [天] 恒星的；根据星球运行测定的
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1. Tropical year , and sidereal year are two different concepts .
在即回归年与恒星年是不同的两个概念。
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2. And this was the way in which the sidero-solar problem was resolved, for the sidereal position of the full moon is in opposition to the invisible position of the sun.
这个方法之所以得以解决恒星-太阳问题，正是因为由恒星测定的满月位置与我们无法看到的太阳位置相反。
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3. The sidereal diurnal variation of cosmic ray ties up with the most basic and important problem in cosmic ray physics such as the origin, propagation and the acceleration mechanisms of cosmic ray.
宇宙线的恒星日变化紧密联系于宇宙线的起源、其传播途径的性质，以及宇宙线的加速机制等宇宙线物理中最基本的重大问题。
- sidereal (adj.) also siderial, 1630s, "star-like;" 1640s, "of or pertaining to the stars," earlier sideral (1590s), from French sidereal (16c.), from Latin sidereus "starry, astral, of the constellations," from sidus (genitive sideris) "star, group of stars, constellation," which is of uncertain origin, perhaps from PIE root *sweid- "to shine" (source also of Lithuanian svidus "shining, bright").
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