luminous body

简明释义

发光体

英英释义

例句

1.In astronomy, a luminous body refers to any object that emits light.

在天文学中，发光体指的是任何发出光的物体。

2.The sun is the most significant luminous body in our solar system.

太阳是我们太阳系中最重要的发光体。

3.Some fish possess organs that make them luminous bodies in the dark ocean depths.

一些鱼类拥有使它们在黑暗海洋深处成为发光体的器官。

4.Stars are distant luminous bodies that can be seen from Earth.

星星是遥远的发光体，可以从地球上看到。

5.The moon is a natural luminous body that illuminates the night sky.

月亮是一个自然的发光体，照亮了夜空。

作文

In the vast expanse of the universe, we often find ourselves captivated by the beauty and mystery of celestial phenomena. One such phenomenon is a luminous body, which refers to any object in space that emits light. This could range from stars, planets, to galaxies, each showcasing their unique characteristics and contributing to the overall splendor of the cosmos. Understanding what a luminous body is can deepen our appreciation for the universe and its complexities.Stars are perhaps the most recognized luminous bodies. They are massive spheres of gas, primarily composed of hydrogen and helium, undergoing nuclear fusion in their cores. This process generates immense amounts of energy, which is released in the form of light and heat. The light emitted by stars travels across vast distances, allowing us to see them even when they are millions of light-years away. For instance, the sun, our closest star, is a perfect example of a luminous body. It provides the necessary light and warmth for life on Earth and plays a crucial role in the solar system's dynamics.Planets, on the other hand, do not emit their own light but can still be considered luminous bodies when they reflect the light of stars. For example, Venus is often referred to as the 'Evening Star' due to its bright appearance in the night sky. Its brilliance is a result of sunlight reflecting off its thick atmosphere. This reflection allows planets to shine brightly, making them visible to the naked eye, despite not being true luminous bodies in the same sense as stars.Galaxies, too, fall under the category of luminous bodies. A galaxy is a massive system that consists of billions of stars, along with gas, dust, and dark matter. The Milky Way, for example, is our home galaxy and contains countless luminous bodies. When viewed from Earth, galaxies appear as faint smudges of light in the night sky, but they are actually vast collections of stars and other celestial objects. The light we see from these distant galaxies gives us clues about their composition, age, and the processes occurring within them.The study of luminous bodies is not just limited to their physical properties; it also encompasses their cultural significance. Throughout history, humans have looked to the night sky for inspiration, guidance, and understanding. Many ancient civilizations built their mythologies and calendars around the movements of these luminous bodies. Today, astronomers continue to explore and uncover the mysteries surrounding these celestial objects, using advanced technology to observe and analyze them in ways that were once unimaginable.In conclusion, the term luminous body encompasses a wide range of celestial objects that emit or reflect light. From the brilliant stars that light up our night sky to the reflective planets and vast galaxies, these luminous entities play a vital role in our understanding of the universe. By studying luminous bodies, we not only gain insights into the mechanics of the cosmos but also connect with the rich history and culture that has arisen from our fascination with the stars. As we continue to explore the universe, the allure of luminous bodies will undoubtedly inspire future generations to look up and wonder at the beauty that surrounds us.

在宇宙的广阔空间中，我们常常被天体现象的美丽和神秘所吸引。其中一种现象是发光体，指的是任何在太空中发出光的物体。这可以包括恒星、行星和星系，每个都展示出其独特的特征，并为宇宙的整体壮丽做出贡献。理解什么是发光体可以加深我们对宇宙及其复杂性的欣赏。恒星可能是最被认可的发光体。它们是巨大的气体球，主要由氢和氦组成，在其核心进行核聚变。这个过程产生了巨量的能量，以光和热的形式释放出来。恒星发出的光穿越浩瀚的距离，使我们即使在数百万光年外也能看到它们。例如，太阳是我们最近的恒星，是发光体的完美例子。它为地球上的生命提供了必要的光和温暖，并在太阳系的动态中发挥着关键作用。另一方面，行星并不发出自己的光，但当它们反射恒星的光时，也可以被视为发光体。例如，金星通常被称为“晚星”，因为它在夜空中明亮的外观。它的光辉是由于阳光反射在其厚厚的气氛上。这种反射使得行星能够发出明亮的光，使它们在肉眼可见的范围内，尽管它们并不是像恒星那样真正的发光体。星系也属于发光体的范畴。星系是一个巨大系统，由数十亿颗恒星以及气体、尘埃和暗物质组成。例如，银河系就是我们的家园星系，包含无数的发光体。从地球上看，星系在夜空中呈现为微弱的光晕，但它们实际上是庞大的恒星和其他天体的集合。我们从这些遥远星系看到的光给我们提供了关于它们的成分、年龄以及内部发生的过程的线索。对发光体的研究不仅限于它们的物理特性；它还包括它们的文化意义。在历史上，人类一直仰望夜空寻求灵感、指导和理解。许多古代文明围绕这些发光体的运动建立了自己的神话和日历。今天，天文学家继续探索和揭示这些天体周围的奥秘，利用先进技术以曾经无法想象的方式观察和分析它们。总之，术语发光体涵盖了一系列发出或反射光的天体。从照亮我们夜空的灿烂恒星到反射光的行星和广袤的星系，这些发光实体在我们理解宇宙中扮演着至关重要的角色。通过研究发光体，我们不仅获得了对宇宙机制的洞察，还与由我们对星星的迷恋所产生的丰富历史和文化相连接。随着我们继续探索宇宙，发光体的魅力无疑将激励未来的世代仰望星空，惊叹于环绕我们的美丽。