apparent declination

简明释义

视赤纬;

英英释义

例句

1.The apparent declination (表观偏角) can vary significantly depending on your geographical location.

根据地理位置的不同，apparent declination（表观偏角）可能会有显著变化。

2.Pilots must consider the apparent declination (表观偏角) when flying in different regions to ensure accurate navigation.

飞行员在不同地区飞行时必须考虑apparent declination（表观偏角），以确保导航准确。

3.The navigator adjusted the ship's course to account for the apparent declination (表观偏角) caused by the Earth's magnetic field.

导航员调整了船只的航向，以考虑地球磁场造成的apparent declination（表观偏角）。

4.In astronomy, the apparent declination (表观偏角) of a star helps determine its position in the sky.

在天文学中，星星的apparent declination（表观偏角）有助于确定其在天空中的位置。

5.Understanding the apparent declination (表观偏角) is crucial for amateur astronomers using telescopes.

理解apparent declination（表观偏角）对使用望远镜的业余天文学家来说至关重要。

作文

The concept of apparent declination is significant in the field of astronomy and navigation. It refers to the angle between the celestial equator and a star or celestial object as observed from Earth. This angle can change based on the observer's location and the time of year. Understanding apparent declination is crucial for astronomers who track the positions of stars and planets in the night sky. When we look up at the stars, we often marvel at their beauty and wonder about their distances from us. However, what many people do not realize is that the position of these stars is not fixed. Instead, they are influenced by various factors including the Earth's rotation and its orbit around the Sun. The apparent declination helps us to understand how these factors affect our view of the cosmos. For instance, during different seasons, certain stars become more visible while others fade from view. This is due to the tilt of the Earth's axis, which changes the angle at which we observe the stars. The apparent declination of a star will vary depending on whether it is summer or winter in the observer's hemisphere. In practical applications, sailors and navigators have historically relied on the apparent declination of stars to guide their journeys across the seas. By knowing the declination of a particular star, they could determine their latitude and navigate more accurately. This ancient practice highlights the importance of understanding celestial mechanics and the movement of heavenly bodies. Modern technology has made navigation easier, but the underlying principles of apparent declination remain essential for understanding the universe. Astronomers use sophisticated telescopes and software to calculate the positions of stars, taking into account their apparent declination. This information is vital for both amateur stargazers and professional scientists alike. Moreover, the study of apparent declination extends beyond just navigation and astronomy; it also plays a role in understanding the dynamics of our solar system. For example, as we learn more about exoplanets and their potential habitability, the apparent declination of their host stars can provide insights into their climates and environments. In conclusion, the term apparent declination encompasses more than just an astronomical measurement; it represents a connection between humanity and the cosmos. Whether we are navigating the oceans or gazing at the stars from our backyards, understanding apparent declination allows us to appreciate the intricate dance of celestial bodies and our place within the universe. As we continue to explore the skies, this knowledge will undoubtedly enhance our understanding of the universe and inspire future generations of astronomers and explorers.

“表观偏角”这一概念在天文学和导航领域中具有重要意义。它指的是从地球观察到的星星或天体与天球赤道之间的角度。这个角度会根据观察者的位置和季节的变化而变化。理解“表观偏角”对于追踪夜空中星星和行星位置的天文学家至关重要。当我们仰望星空时，常常会对星星的美丽感到惊叹，并想知道它们离我们有多远。然而，许多人并没有意识到这些星星的位置并不是固定的。相反，它们受到多种因素的影响，包括地球的自转和围绕太阳的公转。“表观偏角”帮助我们理解这些因素如何影响我们对宇宙的看法。例如，在不同的季节，某些星星变得更加可见，而其他星星则逐渐消失。这是由于地球轴的倾斜，这改变了我们观察星星的角度。一颗星星的“表观偏角”会根据观察者所在半球的夏季或冬季而有所不同。在实际应用中，水手和导航员历史上依赖于星星的“表观偏角”来指导他们在海洋上的航行。通过了解特定星星的偏角，他们可以确定自己的纬度，从而更准确地进行导航。这一古老的实践突显了理解天体力学和天体运动的重要性。现代技术使导航变得更加容易，但“表观偏角”的基本原理仍然对理解宇宙至关重要。天文学家利用复杂的望远镜和软件计算星星的位置，考虑到它们的“表观偏角”。这些信息对业余天文爱好者和专业科学家都至关重要。此外，“表观偏角”的研究不仅限于导航和天文学；它在理解我们太阳系的动态方面也发挥着作用。例如，随着我们对系外行星及其潜在宜居性的了解加深，宿主星的“表观偏角”可以提供有关其气候和环境的见解。总之，“表观偏角”这一术语不仅仅包含一个天文测量；它代表了人类与宇宙之间的联系。无论我们是在海洋中航行，还是在后院仰望星空，理解“表观偏角”使我们能够欣赏天体的复杂舞蹈以及我们在宇宙中的位置。随着我们继续探索天空，这一知识无疑将增强我们对宇宙的理解，并激励未来一代代天文学家和探险者。