increment of hour angle

简明释义

时角的增量

英英释义

例句

1.The engineer explained the increment of hour angle in relation to satellite positioning.

工程师解释了与卫星定位相关的时角增量。

2.The astronomer calculated the increment of hour angle to determine the position of the star in the sky.

天文学家计算了时角增量以确定星星在天空中的位置。

3.Astronomical software often uses the increment of hour angle to simulate planetary movements.

天文软件通常使用时角增量来模拟行星运动。

4.In solar tracking systems, the increment of hour angle is crucial for adjusting the panels.

在太阳能跟踪系统中，时角增量对调整面板至关重要。

5.During the lecture, we learned how the increment of hour angle affects celestial navigation.

在讲座中，我们学习了时角增量如何影响天文导航。

作文

The concept of the increment of hour angle is fundamental in understanding the movement of celestial bodies and their relationship with time. The hour angle itself is a measure of time since noon, expressed in angular measurement (degrees). As the Earth rotates, the position of the sun changes in the sky, which affects how we perceive time during the day. To grasp this concept better, we must delve into both astronomy and the mechanics of timekeeping.When we talk about the increment of hour angle, we refer to the change in the hour angle over a specific period. For instance, as the Earth completes one full rotation (360 degrees) in approximately 24 hours, the hour angle increases by 15 degrees every hour. This increment is vital for astronomers and navigators who need to calculate the precise position of celestial objects at any given moment.Understanding the increment of hour angle is particularly important for those involved in fields such as astronomy, meteorology, and even photography. For astronomers, knowing how to calculate the hour angle helps in predicting the rise and set times of stars and planets. This knowledge is crucial for planning observations and ensuring that telescopes are correctly aligned.In navigation, sailors and aviators rely on the increment of hour angle to determine their position relative to the stars. By measuring the angle between a celestial object and the horizon, they can use the hour angle to find their longitude. This method has been used for centuries and remains an essential skill for navigators today.Moreover, the increment of hour angle also plays a role in the development of sundials, one of the oldest timekeeping devices. Sundials work by casting a shadow on a marked surface, and the position of the shadow indicates the hour of the day. The angle of the shadow changes as the sun moves across the sky, which directly relates to the hour angle and its increments.In practical terms, if we consider a scenario where we need to observe a particular star, knowing the increment of hour angle allows us to determine when the star will be visible in the night sky. If the star's hour angle is currently 30 degrees, and we know it increases by 15 degrees per hour, we can predict that in one hour, the star will have an hour angle of 45 degrees, making it visible at that time.In conclusion, the increment of hour angle is not just a technical term; it is a crucial element that connects our understanding of time with the movements of celestial bodies. Whether for academic purposes or practical applications in navigation and astronomy, mastering this concept enhances our appreciation of the universe and our place within it. As we continue to explore the cosmos, the significance of the hour angle and its increments will undoubtedly remain a cornerstone of astronomical studies and timekeeping practices.

“小时角增量”的概念在理解天体的运动及其与时间的关系中是基础性的。小时角本身是自中午以来的时间度量，以角度（度）表示。随着地球的旋转，太阳在天空中的位置发生变化，这影响了我们在白天感知时间的方式。为了更好地掌握这一概念，我们必须深入探讨天文学和时间计量的机制。当我们谈论“小时角增量”时，我们指的是在特定时间段内小时角的变化。例如，地球大约在24小时内完成一次完整的旋转（360度），因此小时角每小时增加15度。这一增量对于天文学家和导航员来说至关重要，他们需要计算天体在任何给定时刻的精确位置。理解“小时角增量”对从事天文学、气象学甚至摄影等领域的人尤其重要。对于天文学家来说，计算小时角有助于预测恒星和行星的升起和落下时间。这一知识对于规划观测和确保望远镜正确对齐至关重要。在导航中，水手和飞行员依赖“小时角增量”来确定自己相对于星星的位置。通过测量天体与地平线之间的角度，他们可以使用小时角来找到自己的经度。这种方法已经使用了几个世纪，并且仍然是今天导航员的一项基本技能。此外，“小时角增量”也在日晷的发展中发挥着作用，日晷是最古老的计时设备之一。日晷通过在标记表面上投射阴影来工作，阴影的位置指示一天中的小时。随着太阳在天空中的移动，阴影的角度发生变化，这与小时角及其增量直接相关。在实际应用中，如果我们考虑一个需要观察特定恒星的场景，了解“小时角增量”使我们能够确定何时该恒星会在夜空中可见。如果该恒星的小时角当前为30度，并且我们知道它每小时增加15度，那么我们可以预测在一小时后，该恒星的小时角将达到45度，使其在那个时候可见。总之，“小时角增量”不仅仅是一个技术术语；它是连接我们对时间的理解与天体运动的关键元素。无论是出于学术目的还是在导航和天文学中的实际应用，掌握这一概念都增强了我们对宇宙的欣赏以及我们在其中的位置。随着我们继续探索宇宙，小时角及其增量的重要性无疑将继续成为天文学研究和计时实践的基石。