celestial north pole

简明释义

天北极

英英释义

例句

1.The stars appear to rotate around the celestial north pole (天球北极) during the night.

在夜间，星星似乎围绕着celestial north pole (天球北极)旋转。

2.In astronomy, the celestial north pole (天球北极) is an important reference point for star mapping.

在天文学中，celestial north pole (天球北极)是星图绘制的重要参考点。

3.The celestial north pole (天球北极) is located near the star Polaris, also known as the North Star.

celestial north pole (天球北极)位于北极星附近，北极星也被称为北星。

4.Navigators use the position of the celestial north pole (天球北极) to determine their latitude.

导航员利用celestial north pole (天球北极)的位置来确定他们的纬度。

5.Astronomers often refer to the celestial north pole (天球北极) when discussing the motion of celestial bodies.

天文学家在讨论天体运动时常常提到celestial north pole (天球北极)。

作文

The universe is a vast and complex expanse filled with countless celestial bodies, phenomena, and mysteries. Among these wonders is the concept of the celestial north pole, which holds significant importance in both astronomy and navigation. The celestial north pole refers to the point in the sky that is directly above the Earth's North Pole. It serves as a fixed point around which the stars appear to rotate due to the Earth’s rotation on its axis. Understanding this concept is fundamental for astronomers and navigators alike, as it provides a reference point for locating other celestial objects.In astronomy, the celestial north pole is crucial for mapping the night sky. By knowing the location of this point, astronomers can chart the positions of stars and constellations. For instance, the North Star, or Polaris, is located very close to the celestial north pole. This star has been used for centuries by navigators to determine their latitude in the Northern Hemisphere. Its relative position to the celestial north pole remains nearly constant, making it an invaluable tool for those at sea or in unfamiliar territories.Navigationally, the celestial north pole helps in establishing a coordinate system for celestial navigation. Sailors and aviators utilize this system to plot their courses across the globe. By referencing the celestial north pole, they can accurately determine their position and direction. This practice is particularly important when traveling long distances over open waters where terrestrial landmarks are absent.Furthermore, the celestial north pole plays a role in understanding the Earth's axial tilt and its effects on seasons. The tilt of the Earth's axis causes different parts of the planet to receive varying amounts of sunlight throughout the year, leading to the changing seasons. The celestial north pole is a constant in this dynamic system, providing a stable reference point from which we can observe the seasonal shifts in the position of the sun and stars.In addition to its practical applications, the celestial north pole also inspires a sense of wonder and curiosity about the universe. It reminds us of our place in the cosmos and the intricate dance of celestial mechanics. Observing the stars revolving around the celestial north pole can evoke feelings of awe, prompting us to ponder the vastness of space and our connection to it.In conclusion, the celestial north pole is not merely an abstract concept; it is a vital reference point in the realms of astronomy and navigation. Its significance extends beyond technical applications, touching on themes of exploration, discovery, and our relationship with the universe. As we continue to explore the mysteries of the cosmos, the celestial north pole will remain a guiding light, illuminating our path through the stars.

宇宙是一个广阔而复杂的空间，充满了无数的天体、现象和奥秘。在这些奇观中，天球北极的概念具有重要意义，既在天文学上，也在导航中。天球北极指的是在天空中直接位于地球北极上方的点。它作为一个固定点，周围的星星因地球自转而似乎旋转。理解这个概念对天文学家和导航员来说至关重要，因为它为定位其他天体提供了参考点。在天文学中，天球北极对于绘制夜空图非常重要。通过了解这一点的位置，天文学家可以绘制星星和星座的位置。例如，北极星（Polaris）就位于天球北极附近。这颗星星数世纪以来一直被航海者用来确定他们在北半球的纬度。它与天球北极的相对位置几乎保持不变，使其成为海上或在不熟悉的地方的宝贵工具。在导航中，天球北极有助于建立天体导航的坐标系统。水手和飞行员利用这一系统在全球范围内绘制航线。通过参考天球北极，他们可以准确确定自己的位置和方向。这种做法在长距离穿越开放水域时尤为重要，因为那里的陆地标志物稀少。此外，天球北极在理解地球轴倾斜及其对季节的影响方面也起着作用。地球轴的倾斜使得地球的不同部分在一年中的不同时间接受到不同数量的阳光，从而导致季节的变化。天球北极在这个动态系统中是一个恒定的参考点，使我们能够观察太阳和星星位置的季节性变化。除了其实际应用外，天球北极还激发了我们对宇宙的敬畏和好奇。它提醒我们在宇宙中的位置以及天体力学的复杂舞蹈。观察星星围绕天球北极旋转，可以引发敬畏之情，促使我们思考太空的浩瀚以及与之的联系。总之，天球北极并不仅仅是一个抽象的概念；它是天文学和导航领域的重要参考点。它的意义超越了技术应用，涉及探索、发现和我们与宇宙的关系等主题。随着我们继续探索宇宙的奥秘，天球北极将始终是一盏指路明灯，照亮我们穿越星空的道路。