true prime vertical

简明释义

真东西圈

英英释义

例句

1.The true prime vertical is defined by the line that runs from the zenith to the horizon.

true prime vertical 是由从天顶到地平线的直线定义的。

2.The concept of the true prime vertical is crucial in celestial navigation.

在天文导航中，true prime vertical 的概念至关重要。

3.The true prime vertical can be used as a reference point in surveying.

true prime vertical 可作为测量中的参考点。

4.When calculating star positions, astronomers must consider the true prime vertical for accuracy.

在计算星体位置时，天文学家必须考虑 true prime vertical 以确保准确性。

5.In aviation, understanding the true prime vertical helps pilots maintain accurate flight paths.

在航空中，理解 true prime vertical 有助于飞行员保持准确的飞行路线。

作文

In the study of celestial navigation and astronomy, the concept of the true prime vertical plays a crucial role in understanding the position of celestial bodies in relation to an observer on Earth. The true prime vertical is defined as the vertical circle that passes through the zenith and is perpendicular to the horizon, effectively dividing the sky into eastern and western halves. This imaginary line is essential for navigators and astronomers because it helps them determine the altitude and azimuth of stars, planets, and other celestial objects. To comprehend the significance of the true prime vertical, one must first understand the basic principles of celestial navigation. Navigators rely on the positions of celestial bodies to ascertain their location on Earth. By measuring the angle of a star above the horizon, known as its altitude, and the angle along the horizon from a reference direction, known as its azimuth, navigators can triangulate their position. The true prime vertical serves as a reference point for these measurements, providing a clear demarcation of east and west. Furthermore, the true prime vertical is not fixed; it changes with the observer's location and the time of day. As the Earth rotates, the positions of stars and planets shift in relation to the observer's local horizon. Therefore, understanding how to locate the true prime vertical at any given moment is vital for accurate navigation. For instance, when a navigator identifies a star's position in relation to the true prime vertical, they can calculate their latitude by observing how high the star rises in the sky. In addition to its practical applications in navigation, the true prime vertical also has theoretical implications in the field of astronomy. Astronomers utilize the concept to map the celestial sphere and predict the movements of celestial bodies. By establishing a coordinate system based on the true prime vertical, astronomers can create models that describe the orbits of planets and the paths of comets. This modeling is essential for understanding the dynamics of our solar system and beyond. Moreover, the true prime vertical is often used in conjunction with the celestial equator, another important reference line in astronomy. While the true prime vertical divides the sky into east and west, the celestial equator divides it into northern and southern halves. Together, these two lines create a grid system that allows astronomers to pinpoint the locations of celestial objects with remarkable precision. In conclusion, the true prime vertical is a fundamental concept in both celestial navigation and astronomy. It serves as a vital reference point for measuring the positions of stars and planets, aiding navigators in determining their location on Earth. Furthermore, it plays a significant role in the theoretical modeling of celestial mechanics. Understanding the true prime vertical is essential for anyone interested in exploring the vastness of the universe and navigating by the stars. Its importance cannot be overstated, as it bridges the gap between practical navigation and theoretical astronomy, highlighting humanity's enduring fascination with the cosmos.

在天文导航和天文学的研究中，true prime vertical的概念在理解天体相对于地球上观察者的位置时起着至关重要的作用。true prime vertical被定义为通过天顶并垂直于地平面的垂直圆，实际上将天空分为东半球和西半球。这条想象中的线对导航员和天文学家至关重要，因为它帮助他们确定星星、行星和其他天体的高度和方位角。要理解true prime vertical的重要性，首先必须了解天文导航的基本原理。导航员依赖天体的位置来确定他们在地球上的位置。通过测量一颗星星在地平面上的角度，称为其高度，以及从参考方向沿地平面测量的角度，称为其方位角，导航员可以三角测量出他们的位置。true prime vertical作为这些测量的参考点，提供了一个清晰的东西划分。此外，true prime vertical并不是固定的；它随着观察者的位置和时间的变化而变化。随着地球的自转，星星和行星的位置相对于观察者的当地地平面发生变化。因此，理解如何在任何给定时刻定位true prime vertical对于准确导航至关重要。例如，当导航员识别某颗星星相对于true prime vertical的位置时，他们可以通过观察星星在天空中升起的高度来计算他们的纬度。除了在导航中的实际应用外，true prime vertical在天文学领域也具有理论意义。天文学家利用这一概念来绘制天球图，并预测天体的运动。通过建立基于true prime vertical的坐标系统，天文学家可以创建描述行星轨道和彗星路径的模型。这种建模对于理解我们太阳系及其以外的动力学至关重要。此外，true prime vertical通常与天球赤道一起使用，后者是天文学中的另一个重要参考线。当true prime vertical将天空分为东西时，天球赤道则将其分为南北两半。结合这两条线，形成了一个网格系统，使天文学家能够精准定位天体的位置。总之，true prime vertical是天文导航和天文学中的一个基本概念。它作为测量星星和行星位置的重要参考点，帮助导航员确定他们在地球上的位置。此外，它在天体力学的理论建模中也发挥着重要作用。理解true prime vertical对于任何有兴趣探索宇宙浩瀚和通过星星导航的人来说都是必不可少的。它的重要性不容小觑，因为它架起了实用导航与理论天文学之间的桥梁，突显了人类对宇宙的持久迷恋。