astronomic transit

简明释义

中星仪

英英释义

例句

1.During the astronomic transit 天文过境, scientists can gather valuable data about the planet's atmosphere.

在天文过境 天文过境期间，科学家可以收集关于行星大气的宝贵数据。

2.Understanding the astronomic transit 天文过境 patterns helps in predicting future celestial events.

理解天文过境 天文过境模式有助于预测未来的天文事件。

3.The next astronomic transit 天文过境 of Mercury will occur in a few years, and astronomers are preparing to observe it.

下一个天文过境 天文过境将发生在几年后，天文学家们正在准备观察它。

4.The astronomic transit 天文过境 of Jupiter's moons can be observed with a small telescope.

木星的卫星的天文过境 天文过境可以用小型望远镜观察到。

5.The study of the astronomic transit 天文过境 of Venus across the Sun has fascinated astronomers for centuries.

对金星在太阳前的天文过境 天文过境研究使天文学家们数百年来都着迷。

作文

The concept of astronomic transit refers to the passage of celestial bodies across the sky, particularly as observed from Earth. This phenomenon is not only a spectacle for stargazers but also plays a crucial role in astronomy and our understanding of the universe. The term itself derives from the Latin word 'transitus', meaning 'to cross over'. When we observe an astronomic transit, we are witnessing an event where a planet or moon moves in front of a star, causing a temporary dimming of the star's light. This has been a significant method for astronomers to discover exoplanets, which are planets located outside our solar system.Historically, transits have been essential for navigation and timekeeping. For instance, the transit of Venus across the Sun was used by astronomers in the 18th century to calculate the distance from the Earth to the Sun, a fundamental measurement known as the astronomical unit (AU). This event occurs in a pattern that repeats every 105.5 and 121.5 years, making it a rare occurrence that draws significant attention when it happens.In modern times, the study of astronomic transit has advanced with technology. Telescopes equipped with sensitive photometers can detect even the slightest dips in a star's brightness caused by a planet passing in front of it. NASA's Kepler Space Telescope, for example, utilized this method to identify thousands of potential exoplanets by monitoring the brightness of over 150,000 stars simultaneously. This approach has revolutionized our understanding of the prevalence of planets around other stars and has provided insights into their potential habitability.Moreover, astronomic transit is not limited to planets and moons; it also includes the passage of comets and asteroids. These events can offer valuable information about the composition and behavior of these celestial objects. For example, the transit of a comet near Earth can be studied to understand its structure, trajectory, and potential impact on our planet.The significance of astronomic transit extends beyond mere observation; it fosters collaboration among scientists worldwide. Events like the transit of Mercury or Venus often see coordinated observations from various locations on Earth, allowing for a more comprehensive analysis of the event. This collaborative spirit enhances our collective knowledge and encourages the sharing of data and resources among astronomers.In conclusion, the phenomenon of astronomic transit is a captivating aspect of astronomy that bridges historical practices with modern scientific advancements. It serves as a reminder of our place in the universe and the intricate dance of celestial bodies that govern the cosmos. As we continue to explore the depths of space, the study of transits will undoubtedly remain a vital component of our quest for knowledge about the universe and our existence within it.

“天文过境”这一概念是指天体在天空中的移动，尤其是从地球的角度观察到的。这一现象不仅对观星者来说是一个壮观的景象，而且在天文学和我们对宇宙的理解中发挥着至关重要的作用。这个术语本身源于拉丁词“transitus”，意为“穿越”。当我们观察到一次“天文过境”时，我们目睹了一颗行星或月亮在一颗恒星前方移动，导致恒星光线的暂时减弱。这一直是天文学家发现系外行星的重要方法，系外行星是指位于我们太阳系之外的行星。历史上，过境对于导航和计时至关重要。例如，金星在太阳前的过境被18世纪的天文学家用来计算地球到太阳的距离，这是一个被称为天文单位（AU）的基本测量。这一事件以每105.5年和121.5年的模式重复发生，使其成为一个稀有的事件，每当发生时都会引起人们的极大关注。在现代，随着科技的进步，“天文过境”的研究也得到了提升。配备敏感光度计的望远镜可以检测到由于行星在其前方经过而导致的恒星亮度的微小下降。例如，NASA的开普勒太空望远镜利用这种方法，通过同时监测超过150,000颗恒星的亮度来识别数千个潜在的系外行星。这种方法彻底改变了我们对其他恒星周围行星普遍性的理解，并提供了关于它们潜在适居性的见解。此外，“天文过境”并不限于行星和月亮；它还包括彗星和小行星的经过。这些事件可以提供有关这些天体的组成和行为的宝贵信息。例如，彗星靠近地球的过境可以被研究以了解其结构、轨迹以及对我们星球的潜在影响。“天文过境”的重要性不仅限于观察；它促进了全球科学家的合作。像水星或金星的过境事件通常会看到来自地球各地的协调观察，从而允许对事件进行更全面的分析。这种合作精神增强了我们的集体知识，并鼓励天文学家之间数据和资源的共享。总之，“天文过境”现象是天文学的一个迷人方面，它将历史实践与现代科学进步联系在一起。它提醒着我们在宇宙中的位置，以及支配宇宙的天体之间复杂的舞蹈。随着我们继续探索宇宙的深度，过境的研究无疑将继续成为我们对宇宙及其存在的知识追求的重要组成部分。