subastral point = substellar point

简明释义

星下点某瞬间地理位置

英英释义

The subastral point, also known as the substellar point, refers to the point on the surface of a celestial body (such as Earth) that is directly beneath a celestial object (like the Sun) at any given time.

亚天点,也称为亚恒星点,是指在任何给定时间内,位于天体表面(如地球)上,正好在某个天体(如太阳)正下方的点。

例句

1.Astronomers use the subastral point = substellar point to track the movement of celestial bodies.

天文学家使用子天点 = 子星点来追踪天体的运动。

2.During the equinox, the subastral point = substellar point aligns perfectly with the equator.

在春分时,子天点 = 子星点与赤道完美对齐。

3.When planning a solar panel installation, it’s important to know the subastral point = substellar point for optimal sunlight exposure.

在规划太阳能电池板安装时,了解子天点 = 子星点以获得最佳阳光照射是很重要的。

4.The satellite's position directly above the Earth is known as the subastral point = substellar point.

卫星直接位于地球上方的位置被称为子天点 = 子星点

5.The concept of the subastral point = substellar point is crucial for understanding how shadows are cast on Earth.

理解地球上阴影投射的方式时,子天点 = 子星点的概念至关重要。

作文

In the study of astronomy and geography, certain terms are essential for understanding celestial mechanics and the relationship between Earth and other celestial bodies. One such term is the subastral point = substellar point, which plays a crucial role in comprehending how the position of celestial objects affects our perception from Earth. The subastral point = substellar point refers to the point on the Earth's surface that is directly below a celestial body, such as the Sun or a star, at any given moment. This concept is particularly significant when discussing the Sun's position in relation to Earth, especially during different times of the day and year.When we think about the Sun's movement across the sky, we often visualize it rising in the east and setting in the west. However, the subastral point = substellar point helps us understand that while the Sun appears to move, it is actually the rotation of the Earth that creates this illusion. The point on the Earth’s surface where the Sun is directly overhead at noon is known as the subastral point = substellar point. This point shifts throughout the year due to the tilt of the Earth's axis and its orbit around the Sun, leading to variations in daylight hours and seasonal changes.The significance of the subastral point = substellar point extends beyond just understanding the Sun's path. It is also vital in navigation and mapping. For instance, sailors and aviators utilize the concept of the subastral point = substellar point to determine their position relative to the stars and the Sun. Knowing where the subastral point = substellar point is located allows navigators to adjust their course accurately, ensuring they reach their destinations safely.Moreover, in the context of satellite technology, the subastral point = substellar point becomes even more critical. Satellites in geostationary orbit maintain a fixed position relative to the Earth’s surface. For these satellites, the subastral point = substellar point is the point on the Earth directly beneath them. This allows for constant communication and data transmission between the satellite and specific locations on Earth. Understanding the dynamics of the subastral point = substellar point is thus essential for engineers and scientists working in aerospace and telecommunications.In conclusion, the term subastral point = substellar point encapsulates an important aspect of our relationship with the cosmos. By grasping the implications of this concept, we enhance our understanding of not only celestial mechanics but also practical applications in navigation and technology. As we continue to explore and study our universe, terms like subastral point = substellar point will remain fundamental in bridging our terrestrial experiences with the vastness of space. Whether we are looking up at the stars or relying on satellites for communication, the influence of the subastral point = substellar point is ever-present, reminding us of the intricate connections between Earth and the celestial realm.

在天文学和地理学的研究中,某些术语对于理解天体力学以及地球与其他天体之间的关系至关重要。其中一个术语是subastral point = substellar point,它在理解天体位置如何影响我们从地球的感知方面起着关键作用。subastral point = substellar point指的是在任何给定时刻,位于地球表面上直接位于天体(如太阳或星星)正下方的点。这个概念在讨论太阳与地球的关系时尤其重要,特别是在不同的时间和年份。当我们想到太阳在天空中的运动时,我们经常会想象它从东方升起并在西方落下。然而,subastral point = substellar point帮助我们理解,虽然太阳似乎在移动,实际上是地球的自转创造了这种错觉。在中午时分,太阳正好在头顶上方的地球表面点被称为subastral point = substellar point。由于地球轴的倾斜和围绕太阳的轨道,这个点在一年中不断变化,导致日照时间和季节变化的差异。subastral point = substellar point的重要性不仅限于理解太阳的路径。它在导航和制图中也至关重要。例如,水手和飞行员利用subastral point = substellar point的概念来确定他们相对于星星和太阳的位置。知道subastral point = substellar point的位置可以让导航员准确调整航向,确保他们安全到达目的地。此外,在卫星技术的背景下,subastral point = substellar point变得更加关键。处于静止轨道的卫星保持相对于地球表面的固定位置。对于这些卫星来说,subastral point = substellar point是位于它们正下方的地球上的点。这使得卫星与地球特定地点之间能够进行持续的通信和数据传输。因此,理解subastral point = substellar point的动态对于从事航空航天和电信工作的工程师和科学家来说至关重要。总之,术语subastral point = substellar point概括了我们与宇宙关系的重要方面。通过掌握这一概念的含义,我们增强了对天体力学的理解,也促进了在导航和技术方面的实际应用。随着我们继续探索和研究我们的宇宙,像subastral point = substellar point这样的术语将始终在连接我们的地球体验与广阔空间之间发挥基础性作用。无论我们是在仰望星空还是依赖卫星进行通信,subastral point = substellar point的影响无处不在,提醒着我们地球与天体领域之间复杂的联系。