celestial line of position

简明释义

天文位置线

英英释义

例句

1.During navigation at sea, sailors often rely on the celestial line of position to determine their exact location.

在海上航行时，水手们常常依赖于天文位置线来确定他们的确切位置。

2.The use of a sextant allows navigators to plot a celestial line of position based on the stars.

使用六分仪可以让导航员根据星星绘制出一条天文位置线。

3.After taking several sightings, the captain drew a celestial line of position on the chart.

在进行了几次观测后，船长在图表上绘制了一条天文位置线。

4.Understanding how to calculate a celestial line of position is essential for any aspiring navigator.

理解如何计算天文位置线对任何有志成为导航员的人来说都是至关重要的。

5.The celestial line of position can be affected by atmospheric conditions, making precise navigation challenging.

气象条件会影响天文位置线，使得精确导航变得具有挑战性。

作文

Navigating the vast expanse of the ocean has always been a challenge for sailors. Among the various methods employed to determine one’s position at sea, the concept of the celestial line of position plays a crucial role. This technique involves using celestial bodies, such as the sun, moon, and stars, to establish a line on which a ship's position lies. By measuring the angle between a celestial body and the horizon, navigators can create this line, which helps in pinpointing their location on the Earth’s surface.The celestial line of position is derived from traditional navigation techniques that have been used for centuries. Ancient mariners relied heavily on the stars to guide them through uncharted waters. Even today, with the advancement of technology, understanding this concept remains vital for navigators. It not only provides a backup method when modern instruments fail but also deepens the sailor's connection to the age-old art of navigation.To illustrate how the celestial line of position works, consider a scenario where a navigator observes the sun at noon. By using a sextant, they measure the angle of the sun above the horizon. This angle, known as the altitude, can then be plotted against a nautical almanac, which provides information about the sun’s position at that specific time and date. The result is a line on a chart that indicates all the possible positions where the ship could be located at that moment. In practical terms, a navigator may take multiple measurements throughout the day, using different celestial bodies to create several celestial lines of position. Where these lines intersect is the vessel's actual location. This method not only enhances accuracy but also reinforces the importance of celestial navigation in a world increasingly dominated by GPS technology.One of the most fascinating aspects of the celestial line of position is its reliance on the predictable movements of celestial bodies. Unlike terrestrial navigation, which can be affected by obstacles like landforms or weather conditions, celestial navigation is based on the unchanging nature of the stars and planets. This reliability offers a sense of reassurance to sailors, knowing that they can always turn to the heavens for guidance.Moreover, the practice of using a celestial line of position fosters a deeper appreciation for the natural world. Navigators become attuned to the rhythms of the universe, learning to read the skies and interpret the signs that nature provides. This connection to the cosmos can be both humbling and empowering, reminding sailors of their place in the grand scheme of things.In conclusion, the celestial line of position is more than just a navigational tool; it is a testament to humanity's enduring relationship with the sea and the stars. As we continue to innovate and develop new technologies, it is essential to remember the wisdom of our ancestors and the skills they honed over generations. Embracing the art of celestial navigation not only enriches our understanding of the world but also keeps alive the spirit of exploration that drives us to venture into the unknown.

在浩瀚的海洋中航行一直是水手们面临的挑战。在各种确定海上位置的方法中，天体位置线的概念起着至关重要的作用。这一技术涉及利用太阳、月亮和星星等天体来建立一条船只所处位置的线。通过测量天体与地平线之间的角度，导航员可以创建这条线，这有助于确定他们在地球表面的具体位置。天体位置线源自数百年来使用的传统导航技术。古代水手们在未知水域中严重依赖星星来指引方向。即使在今天，随着技术的进步，理解这一概念仍然对导航员至关重要。它不仅提供了现代仪器失效时的备用方法，还加深了水手与古老导航艺术之间的联系。为了说明天体位置线的工作原理，考虑一个场景：导航员在中午观察太阳。通过使用六分仪，他们测量太阳在地平线上的高度角。这个角度被称为高度，可以与海洋年鉴进行绘图，该年鉴提供有关特定时间和日期太阳位置的信息。结果是在图表上绘制出一条线，指示出船只在该时刻可能所在的所有位置。在实际操作中，导航员可能会在一天中多次测量，使用不同的天体来创建几条天体位置线。这些线的交点就是船只的实际位置。这种方法不仅提高了准确性，还强调了在日益主导GPS技术的世界中天体导航的重要性。天体位置线最迷人之处在于其对天体可预测运动的依赖。与可能受到地形或天气条件影响的陆地导航不同，天体导航是基于恒定不变的星星和行星的性质。这种可靠性为水手提供了一种安心感，使他们知道总可以向天空寻求指引。此外，使用天体位置线的实践培养了对自然世界更深的欣赏。导航员逐渐适应宇宙的节奏，学会解读天空和自然提供的信号。这种与宇宙的联系既令人谦卑又赋予力量，提醒水手他们在宏大计划中的位置。总之，天体位置线不仅仅是一种导航工具；它是人类与海洋和星空之间持久关系的见证。随着我们不断创新和开发新技术，记住祖先的智慧和他们几代人磨练出来的技能至关重要。拥抱天体导航的艺术不仅丰富了我们对世界的理解，还保持了推动我们探索未知的探索精神。