astronomic meridian plane

简明释义

天文子午面;

英英释义

例句

1.The astronomers adjusted their telescopes to align with the astronomic meridian plane (天文学子午面) for accurate observations of celestial bodies.

天文学家调整他们的望远镜，以与天文学子午面对齐，以便准确观察天体。

2.Navigators use the astronomic meridian plane (天文学子午面) to determine their geographic position at sea.

航海者使用天文学子午面来确定他们在海上的地理位置。

3.The concept of the astronomic meridian plane (天文学子午面) is fundamental in astronomy for establishing local sidereal time.

天文学子午面的概念在天文学中是建立地方恒星时间的基础。

4.During the equinox, the sun crosses the astronomic meridian plane (天文学子午面), marking a significant point in the celestial calendar.

在春分时，太阳穿过天文学子午面，标志着天文日历中的一个重要节点。

5.In modern observatories, the alignment with the astronomic meridian plane (天文学子午面) is crucial for precise star tracking.

在现代天文台，与天文学子午面的对齐对于精确跟踪星星至关重要。

作文

The concept of the astronomic meridian plane is fundamental in the field of astronomy and navigation. This plane is defined as an imaginary vertical plane that extends from the celestial sphere to the surface of the Earth, intersecting the zenith and nadir points directly above and below a specific location. Understanding this concept is crucial for various applications, including timekeeping, navigation, and even the study of celestial phenomena. To appreciate the significance of the astronomic meridian plane, one must first understand its relationship with the Earth’s rotation and the movement of celestial bodies. The Earth rotates around its axis, which is tilted at an angle relative to its orbital plane around the Sun. This tilt causes different stars and constellations to appear at different times of the year, influencing how we perceive the cosmos. The astronomic meridian plane helps astronomers and navigators determine the position of celestial objects in relation to the observer's location on Earth. One of the key applications of the astronomic meridian plane is in the determination of local noon. Local noon occurs when the Sun reaches its highest point in the sky, crossing the observer's astronomic meridian plane. This moment is essential for accurate timekeeping and has historical significance, as it was used to set clocks before the advent of standardized time zones. By observing the Sun's position, one can ascertain the exact time of day, which is vital for both scientific research and everyday activities.Moreover, the astronomic meridian plane plays a critical role in navigation. Sailors and pilots rely on celestial navigation techniques, where they use the positions of stars, planets, and the Sun to determine their location. By measuring the angles between these celestial bodies and the horizon, navigators can calculate their latitude and longitude. The astronomic meridian plane serves as a reference point for these measurements, enabling navigators to plot their courses accurately across vast oceans and skies.In addition to its practical applications, the astronomic meridian plane also holds significance in the study of celestial events. For instance, during an eclipse, the alignment of the Sun, Moon, and Earth can be analyzed through the lens of the astronomic meridian plane. Astronomers can predict when and where eclipses will occur by understanding how these celestial bodies interact within this plane. This knowledge not only enhances our understanding of the universe but also enriches our cultural and historical narratives surrounding celestial events.In conclusion, the astronomic meridian plane is more than just an abstract concept; it is a vital tool that bridges the gap between the heavens and Earth. It aids in timekeeping, navigation, and the study of celestial phenomena, making it an indispensable element in both scientific inquiry and practical applications. As we continue to explore the mysteries of the universe, the astronomic meridian plane will undoubtedly remain a cornerstone of our understanding of celestial mechanics and navigation.

“天文子午面”的概念在天文学和导航领域中至关重要。这个平面被定义为一个想象中的垂直平面，它从天球延伸到地球表面，穿过特定位置的天顶点和天底点。理解这一概念对于多种应用至关重要，包括计时、导航甚至天体现象的研究。要欣赏“天文子午面”的重要性，首先必须理解它与地球自转和天体运动之间的关系。地球围绕其轴旋转，该轴相对于其围绕太阳的轨道平面倾斜。这种倾斜导致不同的星星和星座在一年中的不同时间出现，影响我们对宇宙的感知。“天文子午面”帮助天文学家和导航员确定天体相对于观察者在地球上的位置。“天文子午面”的一个关键应用是在确定地方正午时。地方正午发生在太阳在天空中达到最高点时，穿过观察者的“天文子午面”。这一时刻对于准确的计时至关重要，并且具有历史意义，因为在标准化时区出现之前，它被用来设置时钟。通过观察太阳的位置，人们可以确定一天的确切时间，这对于科学研究和日常活动都是至关重要的。此外，“天文子午面”在导航中也发挥着关键作用。水手和飞行员依赖天体导航技术，他们使用星星、行星和太阳的位置来确定自己的位置。通过测量这些天体与地平线之间的角度，导航员可以计算他们的纬度和经度。“天文子午面”作为这些测量的参考点，使导航员能够在广阔的海洋和天空中准确绘制航线。除了实际应用外，“天文子午面”在天体现象的研究中也具有重要意义。例如，在日食期间，太阳、月亮和地球的对齐可以通过“天文子午面”进行分析。天文学家可以通过理解这些天体在此平面内的相互作用来预测日食何时何地发生。这一知识不仅增强了我们对宇宙的理解，还丰富了我们围绕天体现象的文化和历史叙事。总之，“天文子午面”不仅仅是一个抽象概念；它是一个重要的工具，架起了天空与地球之间的桥梁。它有助于计时、导航和天体现象的研究，使其成为科学探究和实际应用中不可或缺的元素。随着我们继续探索宇宙的奥秘，“天文子午面”无疑将继续成为我们理解天体力学和导航的基石。