altitude and aziimuth circle

简明释义

地平经纬仪

英英释义

例句

1.During the navigation class, we learned how to read the altitude and azimuth circle for celestial observations.

在导航课上，我们学习了如何读取高度和方位角圆以进行天体观测。

2.The telescope was equipped with an altitude and azimuth circle to help amateur astronomers track planets.

这台望远镜配备了高度和方位角圆，以帮助业余天文学家追踪行星。

3.Using the altitude and azimuth circle, the surveyor measured the angle of elevation to the mountain peak.

测量员使用高度和方位角圆测量到山峰的仰角。

4.The astronomer used the altitude and azimuth circle to accurately locate the star in the night sky.

天文学家使用高度和方位角圆准确定位夜空中的星星。

5.The altitude and azimuth circle is essential for determining the position of objects in the sky.

高度和方位角圆对于确定天空中物体的位置至关重要。

作文

The study of astronomy has fascinated humans for centuries, and one of the essential tools used by astronomers is the concept of the altitude and azimuth circle. This instrument allows astronomers to measure the position of celestial bodies in the sky. The altitude and azimuth circle is a two-dimensional coordinate system that provides a way to pinpoint the location of stars, planets, and other celestial objects. Understanding how this system works is crucial for anyone interested in observing the night sky.To begin with, the term 'altitude' refers to the angle between an object in the sky and the observer's local horizon. It ranges from 0 degrees, which is at the horizon, to 90 degrees, which is directly overhead. Conversely, 'azimuth' is the angle measured from the north point of the horizon, moving clockwise around the observer's viewpoint. This means that an object due east would have an azimuth of 90 degrees, while an object due south would have an azimuth of 180 degrees.The altitude and azimuth circle serves as a practical means of determining these angles. Traditionally, it consists of a circular scale marked with degrees. Astronomers can align the device with a specific celestial object and read off the altitude and azimuth values. This method not only aids in navigation but also enhances our understanding of the universe.One significant advantage of using the altitude and azimuth circle is its simplicity. Unlike more complex systems such as equatorial coordinates, which require knowledge of celestial mechanics, the altitude-azimuth system is intuitive and easy to use for amateur astronomers. As long as one knows how to locate north and can measure angles, they can effectively utilize this system to track celestial events.Moreover, the altitude and azimuth circle is particularly useful for observations that are limited to a specific location. For example, if an astronomer wants to observe a comet or a meteor shower, they can quickly determine the best time to view it based on its altitude and azimuth at that moment. This capability is invaluable for planning observations and ensuring that no spectacular event goes unnoticed.In addition to its practical applications, the altitude and azimuth circle also holds educational value. By learning to use this tool, students and enthusiasts can gain a deeper appreciation for the movements of celestial bodies. They can observe how constellations change positions throughout the night and across seasons, fostering a sense of connection with the cosmos.However, it is worth noting that the altitude and azimuth circle has its limitations. Since it is based on the observer's local position, it does not account for the Earth's rotation. As a result, the altitude and azimuth of a celestial object will change over time, requiring continuous adjustments. For long-term observations or for tracking objects over extended periods, astronomers may need to switch to more sophisticated methods.In conclusion, the altitude and azimuth circle is a fundamental tool in the field of astronomy that allows observers to accurately measure the positions of celestial objects. Its straightforward nature makes it accessible to both novice and experienced astronomers alike. By mastering this tool, individuals can enhance their observational skills and deepen their understanding of the universe, making the night sky an even more captivating realm to explore.

天文学的研究吸引了人类数个世纪，而天文学家使用的一个重要工具就是高度和方位圆的概念。这个仪器使天文学家能够测量天空中天体的位置。高度和方位圆是一个二维坐标系统，提供了一种定位星星、行星和其他天体的方法。理解这个系统的工作原理对于任何对观察夜空感兴趣的人来说都是至关重要的。首先，“高度”一词指的是天空中物体与观察者本地地平线之间的角度。它的范围从0度（即地平线）到90度（即正上方）。相反，“方位”是从地平线的北点开始测量的角度，顺时针围绕观察者的视点移动。这意味着，正东的物体方位为90度，而正南的物体方位为180度。高度和方位圆作为确定这些角度的实用手段。传统上，它由一个标有度数的圆形刻度组成。天文学家可以将设备与特定的天体对齐，并读取高度和方位值。这种方法不仅有助于导航，还增强了我们对宇宙的理解。使用高度和方位圆的一个显著优势是其简单性。与更复杂的系统如赤道坐标相比，后者需要对天体力学的了解，高度-方位系统直观且易于业余天文学家使用。只要知道如何找到北方并测量角度，他们就可以有效利用这个系统来追踪天体事件。此外，高度和方位圆对局限于特定地点的观察特别有用。例如，如果天文学家想观察彗星或流星雨，他们可以根据该时刻的高度和方位快速确定最佳观察时间。这种能力对规划观察和确保不遗漏任何壮观事件是无价的。除了实际应用外，高度和方位圆还具有教育价值。通过学习使用这个工具，学生和爱好者可以更深入地欣赏天体的运动。他们可以观察星座在夜间和季节变化中的位置，培养与宇宙的联系感。然而，值得注意的是，高度和方位圆也有其局限性。由于它基于观察者的本地位置，因此不考虑地球的自转。因此，天体的高度和方位会随时间变化，需要持续调整。对于长期观察或跟踪对象，天文学家可能需要切换到更复杂的方法。总之，高度和方位圆是天文学领域的一个基本工具，使观察者能够准确测量天体的位置。它的直接性质使得新手和经验丰富的天文学家都能轻松使用。通过掌握这个工具，个人可以增强他们的观察技能，加深对宇宙的理解，使夜空成为一个更迷人的探索领域。