easterly hour angle

简明释义

东时角

英英释义

例句

1.The satellite's position was adjusted based on the easterly hour angle calculated by the ground control.

卫星的位置根据地面控制计算的东向时角进行了调整。

2.To accurately track the sun's movement, we need to find the easterly hour angle at noon.

为了准确追踪太阳的运动，我们需要在中午找到东向时角。

3.Astronomers use the easterly hour angle to predict the visibility of celestial events.

天文学家使用东向时角来预测天文事件的可见性。

4.The astronomer calculated the easterly hour angle to determine the position of the stars in the night sky.

天文学家计算了东向时角来确定夜空中星星的位置。

5.In navigation, understanding the easterly hour angle is crucial for determining one's latitude.

在航海中，理解东向时角对于确定纬度至关重要。

作文

Understanding the concept of easterly hour angle is crucial for those studying astronomy and navigation. The term refers to the angle measured in time from the observer’s meridian to the position of the celestial body, specifically towards the east. This concept is essential when calculating the position of stars and planets in the night sky, which can greatly assist navigators and astronomers in their observations and measurements. When we talk about the easterly hour angle, we are essentially discussing how far a celestial object has moved from the local meridian, measured in hours. Each hour corresponds to 15 degrees of rotation of the Earth, as the Earth makes a full 360-degree rotation in 24 hours. Thus, if an object has an easterly hour angle of 2 hours, it means that the object is located 30 degrees east of the local meridian. This measurement becomes particularly significant when determining the rise and set times of celestial bodies. For instance, if one knows the easterly hour angle of a star at a certain time, they can predict when the star will rise above the horizon or set below it. This information is not only fascinating for stargazers but also vital for practical applications such as satellite communications and astronomical research. Moreover, the easterly hour angle plays a key role in the field of celestial navigation. Mariners and aviators rely on accurate positioning of celestial bodies to navigate effectively. By understanding the easterly hour angle of the sun or stars, they can calculate their latitude and longitude, ensuring they stay on course during their journeys. In addition to navigation, the easterly hour angle is also significant in various scientific fields. For example, in solar energy applications, knowing the position of the sun throughout the day allows for optimal placement of solar panels. By calculating the easterly hour angle, engineers can determine the best angle at which to tilt solar panels to maximize sunlight exposure, thereby increasing energy efficiency. Furthermore, the easterly hour angle is not just limited to celestial bodies; it can also be applied to artificial satellites. Understanding the angles at which these satellites orbit the Earth is crucial for communication and data transmission. Engineers use the principles of the easterly hour angle to ensure that signals are transmitted effectively and received without interruption. In summary, the easterly hour angle is a fundamental concept that intersects various fields, including astronomy, navigation, and engineering. Its significance extends beyond theoretical knowledge; it has practical applications that impact our daily lives. Whether one is gazing at the stars, navigating through the oceans, or optimizing solar energy systems, the understanding of the easterly hour angle is indispensable. As we continue to explore and understand our universe, concepts like the easterly hour angle will remain pivotal in guiding our discoveries and innovations.

理解easterly hour angle这一概念对于那些学习天文学和导航的人来说至关重要。这个术语指的是从观察者的子午线到天体位置的时间测量角度，特别是朝东的方向。这个概念在计算星星和行星在夜空中的位置时是必不可少的，它可以极大地帮助导航员和天文学家进行观察和测量。当我们谈论easterly hour angle时，我们实际上是在讨论一个天体从当地子午线移动的距离，以小时为单位进行测量。每小时对应地球旋转15度，因为地球在24小时内完成360度的完整旋转。因此，如果一个物体的easterly hour angle为2小时，这意味着该物体位于当地子午线以东30度的位置。这一测量在确定天体的升起和落下时间时显得尤为重要。例如，如果知道某颗星星在某个时间的easterly hour angle，就可以预测这颗星星何时会出现在地平线上或何时会落下。这些信息不仅对观星者而言令人着迷，也对卫星通信和天文研究等实际应用至关重要。此外，easterly hour angle在天体导航领域也发挥着关键作用。海员和飞行员依赖于天体的准确定位来有效导航。通过了解太阳或星星的easterly hour angle，他们可以计算出自己的纬度和经度，从而确保在航行过程中保持航向。除了导航，easterly hour angle在各个科学领域也具有重要意义。例如，在太阳能应用中，了解太阳在一天中的位置可以优化太阳能电池板的放置。通过计算easterly hour angle，工程师可以确定最佳倾斜角度，以最大化阳光照射，从而提高能量效率。此外，easterly hour angle不仅限于天体；它还可以应用于人造卫星。理解这些卫星围绕地球轨道的角度对于通信和数据传输至关重要。工程师利用easterly hour angle的原理，确保信号有效传输并无中断接收。总之，easterly hour angle是一个基本概念，涉及多个领域，包括天文学、导航和工程。它的重要性超越了理论知识；它具有影响我们日常生活的实际应用。无论是仰望星空、在海洋中航行，还是优化太阳能系统，理解easterly hour angle都是不可或缺的。随着我们继续探索和理解宇宙，像easterly hour angle这样的概念将在指导我们的发现和创新中保持关键作用。