Polaris correction

简明释义

北极星改正量

英英释义

例句

1.The pilot made a Polaris correction to ensure they were flying in the right direction.

飞行员进行了北极星修正以确保他们飞行在正确的方向上。

2.In astronomy, the Polaris correction helps in accurately determining celestial coordinates.

在天文学中，北极星修正有助于准确确定天体坐标。

3.The navigator used the Polaris correction to adjust their course based on the North Star's position.

导航员使用北极星修正根据北极星的位置调整航向。

4.Using a sextant, the mariner applied the Polaris correction to enhance accuracy.

水手使用六分仪应用了北极星修正以提高精确度。

5.When sailing at night, sailors often rely on the Polaris correction for navigation.

夜间航行时，水手们常常依赖北极星修正进行导航。

作文

The concept of Polaris correction is an important one in the field of navigation and astronomy. It refers to the adjustments made to account for the position of Polaris, or the North Star, when determining true north. This correction is crucial for sailors, pilots, and anyone who relies on accurate navigation to reach their destinations safely. Understanding Polaris correction allows navigators to enhance their skills and ensure they are on the right path, literally and figuratively.Polaris is unique in that it is situated nearly directly above the North Pole, making it a reliable point of reference for those in the Northern Hemisphere. However, the Earth’s axial tilt and its elliptical orbit around the sun can cause slight variations in the perceived position of Polaris. This is where Polaris correction comes into play. Navigators must adjust their instruments to account for these variations to ensure their bearings are accurate.In practice, the Polaris correction involves measuring the angle between the horizon and Polaris. By knowing the observer’s latitude, navigators can determine how far off their compass readings may be from true north. For example, if a navigator is at a latitude of 40 degrees North, Polaris will appear at an angle of approximately 40 degrees above the northern horizon. If the compass indicates a different direction, the navigator must apply the Polaris correction to align their course accurately.Moreover, the significance of Polaris correction extends beyond mere navigation. It reflects the broader theme of precision and accuracy in various fields. In science, for instance, the principles of correction and calibration are vital for obtaining reliable data. Similarly, in daily life, making adjustments based on observations can lead to better decision-making and outcomes.In conclusion, the Polaris correction is not just a technical term used by navigators; it embodies the essence of careful observation and adjustment in pursuit of accuracy. Whether one is navigating the vast oceans or simply seeking direction in life, understanding the importance of making corrections based on reliable references can lead to successful journeys. As we continue to explore the world around us, let us remember the lessons learned from the Polaris correction and strive for clarity and precision in all our endeavors.

北极星修正的概念在导航和天文学领域中是一个重要的概念。它指的是在确定真北时，针对北极星（或称北星）位置所做的调整。这一修正对于水手、飞行员以及任何依赖准确导航以安全到达目的地的人来说至关重要。理解北极星修正使导航员能够提高他们的技能，确保他们在正确的道路上，无论是字面上还是比喻上。北极星的独特之处在于它几乎位于北极的正上方，使其成为北半球人们可靠的参考点。然而，地球的轴倾角及其围绕太阳的椭圆轨道可能导致北极星的视位置出现微小变化。这就是北极星修正发挥作用的地方。导航员必须调整他们的仪器，以考虑这些变化，从而确保他们的航向是准确的。在实践中，北极星修正涉及测量地平线与北极星之间的角度。通过了解观察者的纬度，导航员可以确定他们的罗盘读数与真北之间可能存在的偏差。例如，如果导航员处于北纬40度，北极星将出现在北方地平线上大约40度的高度。如果罗盘指示不同的方向，导航员必须应用北极星修正来准确对齐他们的航向。此外，北极星修正的重要性超越了单纯的导航。它反映了在各个领域中精确和准确的更广泛主题。在科学中，例如，修正和校准的原则对于获得可靠数据至关重要。类似地，在日常生活中，根据观察进行调整可以带来更好的决策和结果。总之，北极星修正不仅仅是导航员使用的技术术语；它体现了在追求准确性时仔细观察和调整的本质。无论是在广阔的海洋中导航，还是在生活中寻找方向，理解基于可靠参考进行修正的重要性都能引导成功的旅程。在我们继续探索周围世界的同时，让我们铭记从北极星修正中学到的教训，并在所有努力中追求清晰和精确。