circle of declination

简明释义

时圈时圈

英英释义

例句

1.The pilot checked the circle of declination before taking off.

飞行员在起飞前检查了偏角圈。

2.Understanding the circle of declination is crucial for accurate navigation.

理解偏角圈对准确导航至关重要。

3.In astronomy, the circle of declination helps locate stars in the sky.

在天文学中，偏角圈帮助定位天空中的星星。

4.The navigator adjusted the compass to account for the circle of declination.

导航员调整了指南针以考虑偏角圈。

5.During the hike, we used a map that showed the circle of declination for our region.

在徒步旅行中，我们使用了一张显示我们地区的偏角圈的地图。

作文

The concept of the circle of declination is fundamental in the field of astronomy and navigation. It refers to an imaginary circle on the celestial sphere that is parallel to the celestial equator. This circle represents the positions of stars or celestial bodies as they appear to move across the sky due to the Earth's rotation and its axial tilt. Understanding the circle of declination helps astronomers and navigators determine the altitude and azimuth of celestial objects, which are essential for accurate positioning and navigation.In practical terms, the circle of declination is crucial for anyone interested in stargazing or celestial navigation. For example, when trying to locate a particular star, knowing its declination allows an observer to understand how high it will rise in the sky at different times of the year. Stars with a declination close to the celestial equator will be visible in most locations on Earth, while those with a higher declination may only be seen from specific latitudes.Moreover, the circle of declination plays a significant role in understanding the seasons. As the Earth orbits the Sun, the tilt of its axis causes different celestial bodies to appear higher or lower in the sky throughout the year. This phenomenon is directly related to the declination of the Sun, which changes as the seasons progress. During summer in the Northern Hemisphere, for instance, the Sun reaches a maximum declination, resulting in longer daylight hours. Conversely, during winter, the Sun's declination decreases, leading to shorter days.The implications of the circle of declination extend beyond simple observation; they also influence various fields such as agriculture, meteorology, and even cultural practices. Farmers often rely on celestial patterns to determine the best times for planting and harvesting crops. Similarly, many cultures have developed calendars based on the movement of celestial bodies, which are deeply intertwined with the circle of declination.In conclusion, the circle of declination is more than just an abstract concept; it is a vital tool for understanding our universe. By grasping its significance, we can enhance our appreciation of the night sky and the natural rhythms that govern our planet. Whether one is an amateur astronomer, a seasoned navigator, or simply someone who enjoys watching the stars, recognizing the importance of the circle of declination can enrich our experiences and deepen our connection to the cosmos.

“倾斜圈”这一概念在天文学和导航领域中至关重要。它指的是一个想象中的圆圈，位于天球上，与天赤道平行。这个圆圈代表了星星或天体在天空中由于地球的自转和轴倾角而移动的位置。理解“倾斜圈”有助于天文学家和导航员确定天体的高度和方位，这对于准确定位和导航至关重要。在实际应用中，“倾斜圈”对任何对观星或天体导航感兴趣的人来说都是至关重要的。例如，当试图找到特定的星星时，了解其倾斜度可以让观察者明白它在一年中的不同时间会在天空中升多高。倾斜度接近天赤道的星星在地球上的大多数地方都可见，而倾斜度较高的星星可能只能在特定纬度的地方看到。此外，“倾斜圈”在理解季节方面也发挥着重要作用。当地球围绕太阳公转时，由于其轴的倾斜，导致不同的天体在一年中的不同时间在天空中出现得更高或更低。这个现象与太阳的倾斜度直接相关，随着季节的变化而变化。例如，在北半球的夏季，太阳达到最大倾斜度，导致白昼时间更长。相反，在冬季，太阳的倾斜度降低，导致白昼时间缩短。“倾斜圈”的影响不仅限于简单的观察，它还影响农业、气象学甚至文化实践等多个领域。农民经常依赖天体模式来确定最佳的播种和收获时间。同样，许多文化基于天体的运动制定了日历，这些日历与“倾斜圈”密切相关。总之，“倾斜圈”不仅仅是一个抽象的概念；它是理解我们宇宙的重要工具。通过掌握其重要性，我们可以增强对夜空的欣赏以及支配我们星球的自然节奏。无论是业余天文学家、经验丰富的导航者，还是单纯喜欢看星星的人，认识到“倾斜圈”的重要性都能丰富我们的体验，加深我们与宇宙的联系。