end of astronomical evening twilight

简明释义

天文昏影终

英英释义

例句

1.Birdwatchers know that many species are active around the end of astronomical evening twilight.

鸟类观察者知道许多物种在天文黄昏晚期活跃。

2.The end of astronomical evening twilight marks the transition from dusk to night.

天文黄昏晚期标志着黄昏向夜晚的过渡。

3.Astronomers plan their observations to start right after the end of astronomical evening twilight.

天文学家计划他们的观测工作在天文黄昏晚期后立即开始。

4.Photographers often wait until the end of astronomical evening twilight for the best lighting.

摄影师通常会等到天文黄昏晚期以获得最佳光线。

5.The stars become visible at the end of astronomical evening twilight.

在天文黄昏晚期，星星变得可见。

作文

The concept of twilight is fascinating, as it marks the transition between day and night. Among the different phases of twilight, the end of astronomical evening twilight is particularly significant for astronomers and stargazers alike. This phase occurs when the sun is 18 degrees below the horizon, and it signals the end of the fading light from the day. At this point, the sky is dark enough for most celestial objects to be visible without interference from sunlight. Understanding this moment enhances our appreciation for the night sky and its wonders.During the end of astronomical evening twilight, the atmosphere undergoes a remarkable transformation. As the sun dips below the horizon, the remaining light gradually diminishes, giving way to a deepening blue that eventually turns into a velvety black. This is the moment when stars begin to twinkle and constellations emerge from the shadows of dusk. For amateur astronomers, this time is crucial as it allows them to set up their telescopes and prepare for a night of observation.Furthermore, the end of astronomical evening twilight is not just about the visibility of stars; it also plays a vital role in the study of celestial phenomena. Astronomers rely on this period to gather data about planets, moons, and other cosmic entities. The absence of sunlight allows for clearer observations, which are essential for accurate measurements and research. During this time, many space missions and satellite operations are conducted to maximize the efficiency of their observations.In addition to its scientific importance, the end of astronomical evening twilight holds cultural significance in various societies. Many ancient civilizations observed the night sky and used the stars for navigation, agriculture, and religious practices. The transition from day to night was often marked by rituals and celebrations, reflecting humanity's deep connection with the cosmos. Today, this connection continues, as people seek solace and inspiration from the beauty of the night sky.Moreover, the end of astronomical evening twilight can evoke a sense of wonder and contemplation. It serves as a reminder of the vastness of the universe and our place within it. As we gaze at the stars, we are reminded of the countless stories written in the cosmos, waiting to be discovered. This moment encourages us to reflect on our existence and the mysteries that lie beyond our planet.In conclusion, the end of astronomical evening twilight is a remarkable phenomenon that signifies the transition from daylight to darkness. Its significance extends beyond mere visibility of celestial objects; it encompasses scientific research, cultural heritage, and personal reflection. By understanding and appreciating this moment, we can deepen our connection with the universe and foster a greater appreciation for the beauty that surrounds us each night. Whether through scientific inquiry or personal contemplation, the end of astronomical evening twilight invites us to explore the infinite wonders of the cosmos.

黄昏的概念令人着迷，因为它标志着白天与黑夜之间的过渡。在不同的黄昏阶段中，天文黄昏晚期的结束 对于天文学家和观星者尤其重要。这个阶段发生在太阳位于地平线下18度时，它标志着白天逐渐消退的光线的结束。此时，天空足够黑暗，大多数天体可以在没有阳光干扰的情况下可见。理解这一时刻增强了我们对夜空及其奇迹的欣赏。在天文黄昏晚期的结束期间，大气经历了显著的变化。当太阳沉入地平线以下，剩余的光线逐渐减弱，深蓝色的天空最终变成绒般的黑色。这是星星开始闪烁、星座从黄昏的阴影中浮现出来的时刻。对于业余天文学家来说，这段时间至关重要，因为它允许他们设置望远镜，为观察之夜做好准备。此外，天文黄昏晚期的结束不仅仅关乎星星的可见性；它在天体现象的研究中也扮演着重要角色。天文学家依赖这一时期收集有关行星、月球和其他宇宙实体的数据。阳光的缺失使得观察更加清晰，这对准确测量和研究至关重要。在这段时间内，许多太空任务和卫星操作被进行，以最大化其观察的效率。除了科学的重要性，天文黄昏晚期的结束在各种社会中也具有文化意义。许多古代文明观察夜空，并利用星星进行导航、农业和宗教实践。白天到黑夜的过渡往往通过仪式和庆典来标志，反映了人类与宇宙之间的深厚联系。今天，这种联系依然存在，人们寻求从夜空的美丽中获得安慰和灵感。此外，天文黄昏晚期的结束可以唤起一种奇迹和沉思的感觉。它提醒我们宇宙的广袤以及我们在其中的位置。当我们凝视星星时，我们被提醒无数个写在宇宙中的故事，等待被发现。这一时刻鼓励我们反思自己的存在以及超越我们星球的奥秘。总之，天文黄昏晚期的结束 是一个显著的现象，标志着白天向黑夜的过渡。它的重要性超越了天体的可见性；它涵盖了科学研究、文化遗产和个人反思。通过理解和欣赏这一时刻，我们可以加深与宇宙的联系，并培养对每个夜晚环绕我们的美丽的更大欣赏。无论是通过科学探索还是个人沉思，天文黄昏晚期的结束 邀请我们探索宇宙无限的奇迹。