basic astronomical point

简明释义

基本天文点;

英英释义

例句

1.In navigation, a sailor often refers to a basic astronomical point for accurate positioning.

在导航中，水手常常参考基本天文点以获得准确的位置。

2.Understanding the basic astronomical point is crucial for anyone studying celestial mechanics.

理解基本天文点对于任何研究天体力学的人来说都是至关重要的。

3.The basic astronomical point serves as a reference for mapping celestial objects.

基本天文点作为绘制天体位置的参考。

4.Astronomers often calculate distances based on the basic astronomical point in their observations.

天文学家通常根据他们观察中的基本天文点计算距离。

5.The astronomer used the basic astronomical point to determine the position of the stars.

天文学家使用了基本天文点来确定星星的位置。

作文

In the vast realm of astronomy, understanding the universe's structure and our place within it is crucial. One of the fundamental concepts that astronomers rely on is the basic astronomical point, which serves as a reference for various celestial measurements. This term refers to a specific location in space that is used as a baseline for navigation and observation. For instance, the celestial equator and the vernal equinox are considered basic astronomical points in the context of celestial coordinates.The basic astronomical point is essential for mapping the night sky. By establishing a fixed point, astronomers can accurately determine the positions of stars and other celestial objects. This is similar to how we use latitude and longitude on Earth to pinpoint locations. The basic astronomical point provides a framework that allows astronomers to communicate about the positions of objects in the sky clearly and consistently.Additionally, the basic astronomical point plays a vital role in timekeeping. The rotation of the Earth around its axis and its orbit around the Sun creates a dynamic environment where precise timing is necessary. The basic astronomical point helps in defining time zones and understanding the passage of time in relation to celestial events. For example, the position of the sun at noon can be tracked using this reference point, allowing us to establish local solar time.Moreover, the basic astronomical point is integral to navigation. Sailors and aviators have long depended on the stars for guidance. By utilizing the basic astronomical point, navigators can chart their courses accurately, ensuring safe travel across oceans and skies. The development of tools such as sextants and GPS has further enhanced our ability to use these celestial references in modern navigation.In the field of astrophysics, the basic astronomical point also aids in understanding the dynamics of celestial bodies. By observing the gravitational interactions between objects in space, scientists can infer the presence of unseen masses, such as dark matter. The reference point allows for calculations that reveal the behavior of galaxies and clusters of stars, leading to significant discoveries about the universe's composition and evolution.In conclusion, the concept of the basic astronomical point is foundational to various aspects of astronomy, navigation, and timekeeping. It provides a reference framework that enhances our understanding of the cosmos and our place within it. As we continue to explore the universe, the significance of the basic astronomical point will undoubtedly remain pivotal in our quest for knowledge and discovery. Understanding this concept not only enriches our comprehension of astronomy but also connects us to the larger narrative of human exploration and curiosity about the universe.

在广袤的天文学领域，理解宇宙的结构以及我们在其中的位置至关重要。天文学家依赖的基本概念之一是基本天文点，它作为各种天体测量的参考。这个术语指的是一个特定的空间位置，用作导航和观察的基准。例如，天球赤道和春分点在天球坐标的上下文中被视为基本天文点。基本天文点对于绘制夜空地图至关重要。通过建立一个固定点，天文学家可以准确确定恒星和其他天体的位置。这类似于我们在地球上使用纬度和经度来定位。基本天文点提供了一个框架，使天文学家能够清晰而一致地沟通天空中物体的位置。此外，基本天文点在时间测量中也起着至关重要的作用。地球围绕自身轴线的旋转和围绕太阳的轨道运动创造了一个动态环境，在这里精确的计时是必要的。基本天文点有助于定义时区，并理解与天文事件相关的时间流逝。例如，可以使用该参考点跟踪中午时分太阳的位置，从而使我们能够建立当地的太阳时间。此外，基本天文点在导航中也不可或缺。水手和飞行员长期以来一直依赖星星进行指引。通过利用基本天文点，导航员可以准确绘制航线，确保安全穿越海洋和天空。六分仪和GPS等工具的发展进一步增强了我们在现代导航中使用这些天体参考的能力。在天体物理学领域，基本天文点同样有助于理解天体的动力学。通过观察空间中物体之间的引力相互作用，科学家可以推断出看不见的质量的存在，例如暗物质。该参考点允许进行计算，揭示星系和星团的行为，导致对宇宙组成和演化的重大发现。总之，基本天文点的概念是天文学、导航和时间测量各个方面的基础。它提供了一个参考框架，增强了我们对宇宙及其在其中位置的理解。随着我们继续探索宇宙，基本天文点的重要性无疑将在我们对知识和发现的追求中保持关键地位。理解这一概念不仅丰富了我们对天文学的理解，也将我们与人类探索宇宙的更大叙事联系起来。