astronomical calculation

简明释义

天文计算

英英释义

例句

1.Astronomers often rely on astronomical calculation 天文计算 to predict the positions of celestial bodies.

天文学家通常依赖于天文计算来预测天体的位置。

2.During the lunar eclipse, scientists performed complex astronomical calculation 天文计算 to determine the timing.

在月食期间，科学家进行了复杂的天文计算以确定时间。

3.The ancient Greeks made significant contributions to astronomical calculation 天文计算, laying the groundwork for modern astronomy.

古希腊人在天文计算方面做出了重要贡献，为现代天文学奠定了基础。

4.The astronomical calculation 天文计算 involved in launching a satellite requires precise measurements.

发射卫星所需的天文计算涉及精确的测量。

5.A good understanding of astronomical calculation 天文计算 is essential for anyone studying astrophysics.

对天文计算有良好的理解对于任何学习天体物理的人来说都是必不可少的。

作文

Astronomy has always fascinated humanity, as it allows us to explore the vastness of the universe and understand our place within it. One of the most crucial aspects of astronomy is the use of astronomical calculation, which refers to the methods and techniques used to determine the positions and movements of celestial bodies. These calculations are essential for various applications, from navigation to space exploration.

To comprehend the significance of astronomical calculation, we must first recognize the complexity of the universe. The distances between stars are incomprehensibly vast, and the speeds at which they move can be incredibly fast. For instance, light from the nearest star, Proxima Centauri, takes over four years to reach Earth. Therefore, accurate calculations are necessary to predict where these stars will be at any given time.

Historically, ancient civilizations relied on astronomical calculation for agricultural purposes. By observing the night sky, they could determine the best times for planting and harvesting crops. The Mayans and Egyptians, for example, developed sophisticated calendars based on their observations of celestial events. Their ability to predict solar and lunar eclipses was a testament to their advanced understanding of astronomical calculation.

In modern times, astronomical calculation has become even more critical with the advent of space travel. NASA and other space agencies use precise calculations to launch spacecraft and ensure they reach their intended destinations. For instance, the trajectory of a spacecraft traveling to Mars requires complex calculations to account for the gravitational pull of various celestial bodies and the timing of the launch. Any miscalculation could result in mission failure.

Moreover, astronomical calculation plays a vital role in satellite technology. Satellites orbiting the Earth rely on precise calculations to maintain their orbits and avoid collisions with other objects in space. These calculations involve understanding the gravitational forces acting on the satellite and predicting its future position based on its current trajectory.

Furthermore, astronomical calculation is not limited to practical applications; it also extends to theoretical physics. Scientists use these calculations to develop models of the universe, such as the Big Bang theory and black hole dynamics. By understanding the mathematics behind celestial movements, researchers can make predictions about the behavior of the universe and test their theories against observational data.

In conclusion, astronomical calculation is an indispensable tool in both the historical and modern contexts of astronomy. It enables us to navigate the complexities of the universe, from ancient agricultural practices to cutting-edge space exploration. As we continue to push the boundaries of our knowledge and technology, the importance of astronomical calculation will only grow, allowing us to explore new frontiers and deepen our understanding of the cosmos.

天文学一直吸引着人类，因为它使我们能够探索宇宙的浩瀚，并理解我们在其中的位置。天文学的一个关键方面是使用天文计算，即用于确定天体的位置和运动的方法和技术。这些计算对于从导航到太空探索的各种应用至关重要。

要理解天文计算的重要性，我们必须首先认识到宇宙的复杂性。星星之间的距离不可思议地遥远，它们移动的速度可能非常快。例如，来自最近的恒星比邻星的光线需要超过四年的时间才能到达地球。因此，准确的计算是必要的，以预测这些恒星在任何给定时刻的位置。

历史上，古代文明依靠天文计算来进行农业活动。通过观察夜空，他们可以确定最佳的播种和收割时间。玛雅人和埃及人例如，基于他们对天体事件的观察，发展出了复杂的日历。他们能够预测日食和月食的能力证明了他们对天文计算的先进理解。

在现代，随着太空旅行的出现，天文计算变得更加重要。美国国家航空航天局（NASA）和其他太空机构使用精确的计算来发射航天器，并确保它们到达预定目的地。例如，前往火星的航天器轨迹需要复杂的计算，以考虑各种天体的引力作用和发射时机。任何计算错误都可能导致任务失败。

此外，天文计算在卫星技术中也发挥着重要作用。环绕地球的卫星依赖于精确的计算来维持其轨道，并避免与太空中的其他物体发生碰撞。这些计算涉及理解作用于卫星的引力，并根据当前轨迹预测其未来位置。

此外，天文计算不仅限于实际应用；它还扩展到理论物理学。科学家使用这些计算来开发宇宙模型，例如大爆炸理论和黑洞动态。通过理解天体运动背后的数学，研究人员可以对宇宙行为做出预测，并将其理论与观测数据进行比较。

总之，天文计算在天文学的历史和现代背景中都是一种不可或缺的工具。它使我们能够驾驭宇宙的复杂性，从古代农业实践到尖端的太空探索。随着我们继续推动知识和技术的边界，天文计算的重要性只会增加，使我们能够探索新的前沿，加深对宇宙的理解。