sidereal midnight

简明释义

恒星时12点

英英释义

例句

1.The telescope was calibrated to track celestial objects at sidereal midnight, which translates to 恒星午夜.

望远镜已校准为在sidereal midnight追踪天体，这翻译成中文是恒星午夜。

2.For amateur astronomers, understanding sidereal midnight is crucial for planning observations, or 恒星午夜.

对于业余天文学家来说，理解sidereal midnight对于观察计划至关重要，即恒星午夜。

3.The astronomer noted that the stars would be most visible at sidereal midnight, which is 恒星午夜 in Chinese.

天文学家指出，在sidereal midnight时，星星最为明显，这在中文中是恒星午夜。

4.During sidereal midnight, the Earth is positioned such that the stars appear to be in the same place as they were the previous night, known as 恒星午夜.

在sidereal midnight期间，地球的位置使得星星看起来与前一天晚上相同，这被称为恒星午夜。

5.Astrophotographers often schedule their shoots around sidereal midnight for the best results, or 恒星午夜。

天文摄影师通常会围绕sidereal midnight安排拍摄，以获得最佳效果，即恒星午夜。

作文

In the realm of astronomy, time is not merely a measure of hours and minutes but a complex interplay of celestial movements. One of the intriguing concepts in this field is sidereal midnight, which refers to the moment when a given celestial body, such as a star, is at its highest point in the sky. This event occurs precisely opposite the position of the sun in the sky, meaning that while it is sidereal midnight for a particular star, the sun is below the horizon. This concept is crucial for astronomers and stargazers alike, as it helps them understand the timing of celestial events and the positioning of stars throughout the night.To grasp the significance of sidereal midnight, one must first understand the difference between solar and sidereal time. Solar time is based on the position of the sun in the sky, which dictates our conventional clock time. In contrast, sidereal time is based on the rotation of the Earth relative to distant stars. A sidereal day lasts approximately 23 hours, 56 minutes, and 4 seconds, making it slightly shorter than a solar day. Consequently, sidereal midnight shifts gradually over the course of the year, moving ahead of solar midnight by about four minutes each day.This phenomenon has practical implications for various fields, including navigation and astronomy. For instance, when astronomers schedule observations, they must account for sidereal midnight to ensure that they are observing celestial bodies at their peak visibility. Failure to do so could result in missed opportunities to study rare astronomical events or phenomena.Moreover, the concept of sidereal midnight also highlights our connection to the cosmos. It serves as a reminder that our perception of time is intricately tied to the movements of celestial bodies. As we gaze at the night sky, understanding when sidereal midnight occurs can deepen our appreciation of the universe's vastness and the precise mechanics that govern it.In conclusion, sidereal midnight is more than just a technical term; it encapsulates the relationship between time and the cosmos. By comprehending this concept, we not only enhance our knowledge of astronomy but also cultivate a greater appreciation for the wonders of the universe. Whether you are an aspiring astronomer or simply someone who enjoys stargazing, recognizing the significance of sidereal midnight can enrich your experience and understanding of the night sky.

在天文学的领域中，时间不仅仅是小时和分钟的度量，而是天体运动的复杂交互作用。其中一个引人入胜的概念是恒星午夜，指的是某个特定天体（如星星）在天空中达到其最高点的时刻。这个事件发生在太阳在天空中的位置的正对面，这意味着当某颗星星处于恒星午夜时，太阳则位于地平线以下。这个概念对于天文学家和观星者来说至关重要，因为它帮助他们理解天体事件的时机以及星星在夜间的定位。要理解恒星午夜的重要性，首先必须了解太阳时间和恒星时间之间的区别。太阳时间是基于太阳在天空中的位置，这决定了我们常规的时钟时间。相反，恒星时间是基于地球相对于遥远星星的自转。一个恒星日大约持续23小时56分钟4秒，稍微短于一个太阳日。因此，恒星午夜在一年中逐渐移动，每天比太阳午夜提前约四分钟。这一现象对包括导航和天文学在内的多个领域具有实际意义。例如，当天文学家安排观测时，他们必须考虑恒星午夜，以确保在天体最佳可见性时进行观察。如果未能做到这一点，可能会导致错过研究稀有天文事件或现象的机会。此外，恒星午夜的概念还突显了我们与宇宙的联系。它提醒我们，时间的感知与天体的运动密切相关。当我们仰望夜空时，理解恒星午夜的发生时间可以加深我们对宇宙浩瀚及其精确机制的欣赏。总之，恒星午夜不仅仅是一个技术术语；它概括了时间与宇宙之间的关系。通过理解这一概念，我们不仅增强了对天文学的知识，还培养了对宇宙奇观的更大欣赏。无论你是一个有志的天文学家还是一个简单喜欢观星的人，认识到恒星午夜的重要性都可以丰富你的体验和对夜空的理解。