prime vertical

简明释义

东西圈

英英释义

例句

1.The observer noted the position of the stars in relation to the prime vertical 本初子午线 during the night.

观察者注意到星星相对于本初子午线的位置。

2.The sun rises along the prime vertical 本初子午线 at the equinox.

在春分时，太阳沿着本初子午线升起。

3.Navigators use the prime vertical 本初子午线 as a reference for determining their latitude.

导航员使用本初子午线作为确定其纬度的参考。

4.During the navigation course, we learned how to calculate angles using the prime vertical 本初子午线.

在导航课程中，我们学习了如何使用本初子午线计算角度。

5.In astronomy, the prime vertical 本初子午线 is essential for understanding celestial movements.

在天文学中，本初子午线对于理解天体运动至关重要。

作文

The concept of the prime vertical is an important one in the field of astronomy and navigation. It refers to a great circle on the celestial sphere that is perpendicular to the horizon at a specific location. Understanding the prime vertical is crucial for astronomers and navigators alike, as it helps in determining the position of celestial bodies in relation to the observer's location on Earth.To grasp the significance of the prime vertical, we must first understand some basic concepts of spherical astronomy. The celestial sphere is an imaginary sphere that surrounds the Earth, onto which all celestial objects can be projected. The observer's local horizon divides this sphere into two hemispheres: the visible sky above and the hidden sky below. The prime vertical is a great circle that runs from the northern point on the horizon, through the zenith (the point directly overhead), to the southern point on the horizon. This circle plays a pivotal role in celestial navigation, as it allows navigators to determine their latitude and longitude by observing the positions of stars and planets.In practical terms, the prime vertical can be used to measure the altitude of celestial objects. For example, when a star rises in the east, it crosses the prime vertical at its highest point in the sky, known as culmination. At this moment, the altitude of the star can be measured, providing valuable information about the observer's geographical position. This technique has been employed by sailors and explorers for centuries, allowing them to navigate vast oceans and uncharted territories with remarkable accuracy.Moreover, the prime vertical is also essential in understanding the concept of time in relation to celestial movements. As the Earth rotates, different stars and celestial bodies rise and set, moving across the sky. By tracking these movements in relation to the prime vertical, astronomers can calculate local sidereal time, which is crucial for setting astronomical clocks and predicting celestial events.In addition to its practical applications, the prime vertical holds a deeper philosophical significance. It symbolizes the connection between the Earth and the cosmos, representing how our understanding of the universe is grounded in our earthly experiences. The prime vertical serves as a reminder that while we are bound to our physical location on Earth, we are also part of a much larger celestial framework.As we continue to explore the universe and develop new technologies for navigation and observation, the prime vertical remains a fundamental concept that bridges ancient practices with modern science. Whether it is used for practical navigation or as a tool for understanding our place in the universe, the prime vertical is a testament to humanity's enduring quest for knowledge and exploration. In conclusion, mastering the concept of the prime vertical not only enhances our navigational skills but also deepens our appreciation for the intricate relationship between Earth and the cosmos.

“prime vertical”的概念在天文学和导航领域中是一个重要的概念。它指的是在特定位置上与地平线垂直的天球上的大圆。理解prime vertical对天文学家和导航员来说至关重要，因为它有助于确定天体相对于观察者在地球上的位置。为了理解prime vertical的重要性，我们必须首先了解一些球面天文学的基本概念。天球是一个想象中的球体，围绕地球旋转，所有的天体都可以投射到这个球体上。观察者的局部地平线将这个球体分为两个半球：可见的天空在上方，而隐藏的天空在下方。prime vertical是一个从地平线北点穿过天顶（正上方的点）到地平线南点的伟大圆圈。这个圆圈在天体导航中起着关键作用，因为它允许导航员通过观察星星和行星的位置来确定他们的纬度和经度。在实际操作中，prime vertical可以用来测量天体的高度。例如，当一颗星星在东边升起时，它在天空中最高点的交叉点，即称为巅峰。在这个时刻，可以测量星星的高度，这提供了关于观察者地理位置的宝贵信息。这种技术被水手和探险家使用了几个世纪，使他们能够以惊人的准确性在广阔的海洋和未知的领域中航行。此外，prime vertical在理解时间与天体运动之间的关系方面也至关重要。随着地球的自转，不同的星星和天体升起和落下，穿过天空。通过跟踪这些运动与prime vertical的关系，天文学家可以计算地方恒星时间，这对设置天文时钟和预测天文事件至关重要。除了其实际应用外，prime vertical还具有更深的哲学意义。它象征着地球与宇宙之间的联系，代表着我们对宇宙的理解是根植于我们在地球上的经历。prime vertical提醒我们，虽然我们被束缚在地球的物理位置上，但我们也是一个更大天体框架的一部分。随着我们继续探索宇宙并开发新的导航和观察技术，prime vertical仍然是一个基本概念，连接着古老的实践与现代科学。无论是在实际导航中使用，还是作为理解我们在宇宙中位置的工具，prime vertical都是人类对知识和探索的持久追求的证明。总之，掌握prime vertical的概念不仅提升了我们的导航技能，也加深了我们对地球与宇宙之间复杂关系的欣赏。