apparent position

简明释义

天体的)视位置

英英释义

例句

1.In navigation, sailors must account for the apparent position of stars when plotting their course.

在航海中，水手们在绘制航线时必须考虑星星的表观位置。

2.The apparent position of the sun changes throughout the day due to the rotation of the Earth.

由于地球的自转，太阳的表观位置在一天中不断变化。

3.The star's apparent position is affected by the Earth's atmosphere, making it look slightly displaced.

星星的表观位置受到地球大气的影响，看起来略微偏移。

4.During a solar eclipse, the apparent position of the moon can completely cover the sun.

在日食期间，月亮的表观位置可以完全遮盖太阳。

5.In photography, the apparent position of objects can change based on the lens used.

在摄影中，物体的表观位置可以根据使用的镜头而变化。

作文

In the realm of physics and astronomy, the concept of an object's apparent position is crucial for understanding how we perceive celestial bodies. The apparent position refers to the location of an object as it appears to an observer, which may differ from its actual or true position due to various factors such as atmospheric refraction, distance, and the motion of the observer. This distinction is particularly significant when observing stars and planets, where their light travels vast distances before reaching our eyes. For instance, when we look at a star in the night sky, we are not seeing it as it is at this very moment but rather as it was when the light left it, sometimes millions of years ago. This phenomenon can lead to discrepancies between the star's apparent position and its actual location in space. Astronomers must account for these differences when mapping the universe and making predictions about celestial events.Moreover, the apparent position is also influenced by the Earth's atmosphere. Light from stars can bend as it passes through different layers of air, causing the stars to appear higher in the sky than they truly are. This bending of light is known as atmospheric refraction, and it can significantly affect our observations. For example, during sunrise and sunset, the sun appears to be above the horizon even when it is technically below it due to this refraction. Understanding the apparent position helps astronomers correct their measurements and gain a more accurate view of the cosmos.In everyday life, the concept of apparent position can also be observed in our daily experiences. Consider the way objects appear to shift when viewed through a glass of water. The light refracts as it moves from air into water, causing objects submerged in the water to appear displaced from their actual position. This simple observation can help illustrate the principle of apparent position and how our perceptions can be altered by external factors.In conclusion, the notion of apparent position is essential in both scientific and practical contexts. It reminds us that what we see is not always a direct reflection of reality. Whether we are gazing at distant stars or observing objects through a medium like water, the apparent position serves as a reminder of the complexities of perception and the importance of understanding the underlying principles that govern our observations. By grasping this concept, we can better appreciate the wonders of the universe and the intricacies of our everyday experiences.

在物理学和天文学领域，物体的表观位置概念对于理解我们如何感知天体至关重要。表观位置是指物体在观察者眼中所呈现的位置，这可能由于大气折射、距离和观察者的运动等各种因素而与其实际或真实位置不同。这种区别在观察星星和行星时尤为重要，因为它们的光在到达我们眼睛之前需要经过漫长的距离。例如，当我们在夜空中看一颗星星时，我们看到的并不是它此刻的样子，而是当光离开它时的样子，有时甚至是几百万年前的样子。这种现象可能导致星星的表观位置与其在空间中的实际位置之间存在差异。天文学家在绘制宇宙图和预测天体事件时必须考虑这些差异。此外，表观位置还受到地球大气的影响。光线在穿过不同的空气层时会弯曲，导致星星在天空中的位置看起来比实际位置更高。这种光的弯曲被称为大气折射，它可以显著影响我们的观察。例如，在日出和日落时，太阳看起来在地平线以上，即使它实际上是低于地平线的，这正是由于这种折射。理解表观位置有助于天文学家校正他们的测量，从而获得对宇宙更准确的视野。在日常生活中，表观位置的概念也可以在我们的日常经历中观察到。考虑一下通过一杯水观看物体的方式。当光从空气进入水中时会发生折射，导致浸入水中的物体看起来与其实际位置错位。这一简单的观察可以帮助说明表观位置的原理，以及我们的感知如何受到外部因素的影响。总之，表观位置的概念在科学和实践上下文中都是必不可少的。它提醒我们，所看到的并不总是现实的直接反映。无论是凝视遥远的星星，还是通过像水这样的介质观察物体，表观位置都提醒我们感知的复杂性以及理解支配我们观察的基本原理的重要性。通过掌握这一概念，我们可以更好地欣赏宇宙的奇迹以及我们日常经历的复杂性。