superior conjunction

简明释义

上合

英英释义

例句

1.Understanding the timing of a superior conjunction can help in planning astronomical observations.

了解上合的时间可以帮助规划天文观测。

2.The superior conjunction of Mars and the Sun will make Mars invisible for a short period.

火星和太阳的上合将使火星在短时间内不可见。

3.Astronomers often observe changes in a planet's brightness during its superior conjunction.

天文学家常常观察到行星在其上合期间亮度的变化。

4.During a superior conjunction, the planet is positioned directly behind the sun from our viewpoint on Earth.

在上合时，行星在我们地球的视角下正好位于太阳的背后。

5.The next superior conjunction of Venus will occur in 2025, making it an exciting event for sky watchers.

金星的下一个上合将在2025年发生，这对观星者来说是一个激动人心的事件。

作文

In the realm of astronomy, various phenomena occur that can significantly influence our understanding of celestial mechanics. One such phenomenon is the superior conjunction, which refers to the alignment of a superior planet with the Sun as observed from Earth. This event occurs when a planet, such as Mars or Jupiter, is positioned on the opposite side of the Sun relative to Earth. During this time, the planet is not visible in the night sky because it is obscured by the Sun's bright light. Understanding the concept of superior conjunction is essential for astronomers and space enthusiasts alike, as it plays a crucial role in studying planetary motion and behavior.The term 'superior' in superior conjunction indicates that the planet in question is farther from the Sun than Earth is. In contrast, an 'inferior conjunction' occurs when a planet, like Mercury or Venus, lies between the Earth and the Sun. The study of these conjunctions helps astronomers predict when a planet will be visible and when it will be hidden behind the Sun. For example, when Mars reaches superior conjunction, it is an excellent opportunity for scientists to study its atmosphere and surface conditions when it re-emerges into view after the conjunction.Moreover, superior conjunction can also have implications for space missions. When planning missions to Mars, for instance, engineers must consider the timing of the conjunctions. Launch windows are determined based on the positions of the planets to ensure that spacecraft can reach their destinations efficiently. If a spacecraft were to launch during a superior conjunction, it would require more fuel and time to navigate around the Sun, which could delay mission objectives.The effects of superior conjunction extend beyond just visibility and mission planning. This alignment can also influence gravitational interactions within the solar system. During this time, the gravitational pull of the Sun on the superior planet can create subtle changes in its orbit. These small variations are significant for long-term studies of planetary dynamics and can provide insights into the formation and evolution of the solar system.In addition to scientific implications, superior conjunction has historical significance as well. Ancient astronomers observed these events and recorded their observations, which contributed to the development of early astronomical models. The careful tracking of planetary positions during these conjunctions allowed astronomers to refine their understanding of the heavens, paving the way for modern astronomy.In conclusion, the phenomenon of superior conjunction is a fascinating aspect of celestial mechanics that encompasses visibility, mission planning, gravitational effects, and historical significance. As we continue to explore the cosmos, understanding such phenomena will remain crucial for both scientific advancement and our appreciation of the universe. The next time you gaze up at the night sky, remember that the intricate dance of planets and their alignment with the Sun can lead to remarkable discoveries and insights into the workings of our solar system.

在天文学的领域中，发生各种现象，这些现象可以显著影响我们对天体力学的理解。一个这样的现象是上合相，它指的是从地球观察到的一个外行星与太阳的对齐。当一颗行星，如火星或木星，位于相对于地球的太阳的另一侧时，就会发生这种情况。在此期间，由于被太阳的强光遮蔽，行星在夜空中不可见。理解上合相的概念对天文学家和太空爱好者来说至关重要，因为它在研究行星运动和行为方面起着关键作用。在上合相中，“上”这个词表示相关行星距离太阳比地球更远。相比之下，“内合相”发生在像水星或金星这样的行星位于地球和太阳之间。对这些合相的研究帮助天文学家预测行星何时可见以及何时被太阳遮挡。例如，当火星达到上合相时，科学家们有机会在合相后研究其大气和表面条件。此外，上合相也可能对太空任务产生影响。在计划前往火星的任务时，工程师必须考虑合相的时机。发射窗口根据行星的位置进行确定，以确保航天器能够高效到达目的地。如果航天器在上合相期间发射，它将需要更多的燃料和时间来绕过太阳，这可能会延迟任务目标。上合相的影响不仅限于可见性和任务规划。这种对齐还可以影响太阳系内的引力相互作用。在此期间，太阳对外行星的引力作用可能会造成其轨道的微小变化。这些小变化对长期的行星动力学研究具有重要意义，可以提供有关太阳系形成和演化的见解。除了科学影响外，上合相还有历史意义。古代天文学家观察到这些事件并记录他们的观察，这为早期天文学模型的发展做出了贡献。在这些合相期间，对行星位置的仔细跟踪使天文学家能够完善他们对天空的理解，为现代天文学铺平了道路。总之，上合相现象是天体力学的一个迷人方面，涵盖了可见性、任务规划、引力效应和历史意义。随着我们继续探索宇宙，理解这样的现象将对科学进步和我们对宇宙的欣赏保持至关重要。下次当你仰望夜空时，请记住，行星的复杂舞蹈及其与太阳的对齐可以导致显著的发现和对我们太阳系运作的深入了解。