astronomical navigation tables

简明释义

天文航海表

英英释义

例句

1.Before GPS, mariners relied heavily on astronomical navigation tables for accurate navigation.

在GPS出现之前，海员们非常依赖天文导航表进行精确导航。

2.Using astronomical navigation tables, the navigator calculated their latitude and longitude.

导航员使用天文导航表计算他们的纬度和经度。

3.The captain consulted the astronomical navigation tables to plot the course for the voyage.

船长查阅了天文导航表以规划航程。

4.The training course included lessons on how to read astronomical navigation tables effectively.

培训课程包括如何有效阅读天文导航表的课程。

5.Sailors used astronomical navigation tables to determine their position at sea.

水手们使用天文导航表来确定他们在海上的位置。

作文

Navigating the vast oceans has always been a daunting task for sailors. Historically, the methods employed to determine one’s position at sea were both complex and fascinating. Among these methods, the use of astronomical navigation tables stands out as a remarkable achievement in maritime history. These tables, which consist of pre-calculated values of celestial bodies, provided navigators with essential information about the positions of the stars and planets at various times throughout the year. By using these tables, sailors could accurately calculate their latitude and longitude, enabling them to traverse the seas with greater confidence.The significance of astronomical navigation tables cannot be overstated. Before the advent of modern technology, mariners relied heavily on the night sky to guide their journeys. The tables were meticulously compiled from centuries of astronomical observations, making them invaluable tools for navigation. For instance, by measuring the angle of a star above the horizon, sailors could determine their latitude. However, to find their longitude, they needed accurate timekeeping devices, which were not widely available until the late 18th century. Thus, astronomical navigation tables were a crucial part of the navigational toolkit, especially in an era when precision was paramount.The creation of these tables involved extensive calculations and observations. Astronomers would note the positions of celestial bodies and document them in tables, which were then used by navigators aboard ships. The tables typically included data on the sun, moon, planets, and prominent stars. Each entry would indicate the celestial body's altitude and azimuth at specific times, allowing sailors to make informed decisions based on their observations. This practice not only required a deep understanding of astronomy but also demanded skillful seamanship.In addition to their practical applications, astronomical navigation tables also reflect the human desire to explore and understand the world. The development of these tables was often driven by the need for trade, exploration, and military strategy. As nations expanded their territories, the ability to navigate effectively became a matter of national interest. The tables served as a bridge between science and exploration, showcasing how knowledge could be harnessed to achieve great feats.Today, while we rely on GPS and digital navigation systems, the legacy of astronomical navigation tables still endures. They remind us of the ingenuity and perseverance of those who came before us. The skills and techniques developed during the age of celestial navigation have laid the groundwork for modern navigational practices. Moreover, understanding the principles behind these tables can enhance our appreciation for the natural world and the universe beyond.In conclusion, astronomical navigation tables are an essential part of maritime history, symbolizing the intersection of science, exploration, and human ingenuity. They played a vital role in enabling sailors to navigate the oceans with confidence and precision. As we continue to explore new frontiers, it is important to remember the contributions of those who relied on the stars to guide their way. The rich history of navigation serves as a testament to our enduring quest for knowledge and discovery, inspiring future generations to look up at the night sky and wonder about the mysteries it holds.

在广阔的海洋中航行一直是水手们面临的艰巨任务。历史上，确定在海上的位置所采用的方法既复杂又迷人。在这些方法中，使用天文导航表作为航海历史上的一项卓越成就尤为突出。这些表格由预先计算的天体值组成，为导航员提供了关于星星和行星在一年中不同时间位置的重要信息。通过使用这些表格，水手能够准确计算他们的纬度和经度，使他们能够更自信地穿越海洋。天文导航表的重要性不容小觑。在现代技术出现之前，海员们在夜空中寻找指引。表格是根据几个世纪的天文观测精心编制的，使其成为导航中不可或缺的工具。例如，通过测量星星在地平线上方的角度，水手可以确定他们的纬度。然而，要找到他们的经度，他们需要准确的计时设备，而这些设备直到18世纪末才得到广泛使用。因此，天文导航表是导航工具包中至关重要的一部分，尤其是在精确度至关重要的时代。这些表格的创建涉及大量的计算和观察。天文学家会记录天体的位置并将其记录在表格中，然后供船上的导航员使用。表格通常包括关于太阳、月亮、行星和显著星星的数据。每个条目都会指示特定时间天体的高度和方位角，使水手能够根据自己的观察做出明智的决策。这种做法不仅需要对天文学的深刻理解，还需要熟练的航海技巧。除了实际应用，天文导航表还反映了人类探索和理解世界的愿望。这些表格的发展往往是由于贸易、探索和军事战略的需要。当国家扩大领土时，有效导航的能力成为国家利益的问题。这些表格作为科学与探索之间的桥梁，展示了如何利用知识来实现伟大的壮举。今天，虽然我们依赖GPS和数字导航系统，但天文导航表的遗产依然存在。它们提醒我们，前人所表现出的创造力和毅力。航海时代发展起来的技能和技术为现代导航实践奠定了基础。此外，理解这些表格背后的原理可以增强我们对自然世界以及宇宙奥秘的欣赏。总之，天文导航表是航海历史的重要组成部分，象征着科学、探索和人类智慧的交汇。它们在使水手能够自信而精确地航行海洋方面发挥了至关重要的作用。当我们继续探索新的前沿时，重要的是要记住那些依靠星星指引方向的人的贡献。丰富的导航历史证明了我们对知识和发现的持久追求，激励着未来几代人仰望夜空，思考其中蕴藏的奥秘。