photosphere

简明释义

英[ˈfəʊtəʊˌsfɪə]美[ˈfotəˌsfɪr]

n. 光球，光球层

英英释义

单词用法

同义词

反义词

例句

1.They are transient tangles in the sun’s magnetic field that are slightly cooler than their surroundings and so appear as dark patches in the photosphere—the surface layer of the sun.

它们是位于太阳磁场上暂时性的比周边温度偏低的混乱的一块区域，也因此看起来就像光球——太阳表层上的暗斑。

2.After those zones comes the part of the star that radiates visible light, the photosphere, which is often referred to as the surface of the star.

在这些区域之外，是恒星辐射可见光的部分，即光球层，一般被当作是恒星的表面。

3.I learnt from him many of the songs in his repertoire and these were in even greater request than my talks about the photosphere of the Sun or the many moons of Saturn.

我从他身上学到了许多歌曲。这些歌曲可比我对太阳这个发光体和土星上的卫星的有关讲述，更受人欢迎。

4.Photosphere means light sphere, 'which is the brightest layer of the sun's atmosphere.

光球层意味着“发光的球面”，是太阳大气层最明亮的一层。

5.The photosphere is the lowest layer of the sun's atmosphere, and emits the light we see.

光球是太阳大气的最底层，我们看到的光线就是从它发出的。

6.The photosphere has a granular structure.

光球还有颗粒结构。

7.From about 200 km above the photosphere outward extension of the height of 100 km area.

从光球之上约200公里的高度向外延伸100公里的区域。

8.The chromosphere is a frothy layer churned up by gases in the photosphere.

色球层在光球层气体的搅拌下是个多泡层。

9.Detailed studies on magnetic field topology above photosphere have been done.

人们对磁场拓扑结构进行了深入的研究。

10.Scientists study the temperature variations in the photosphere to understand solar activity.

科学家研究光球层的温度变化，以了解太阳活动。

11.The photosphere has a temperature of about 5,500 degrees Celsius.

光球层的温度约为5500摄氏度。

12.The outer layer of the sun is known as the photosphere, which emits visible light.

太阳的外层被称为光球层，它发出可见光。

13.Sunspots are cooler regions on the photosphere that appear darker.

太阳黑子是光球层上较冷的区域，显得较暗。

14.During a solar eclipse, the photosphere can be partially obscured by the moon.

在日食期间，光球层可能会被月球部分遮挡。

作文

The universe is a vast and fascinating place, filled with mysteries that scientists and astronomers have been trying to unravel for centuries. One of the most intriguing aspects of our Sun, which is the center of our solar system, is its structure and composition. Among the various layers that make up the Sun, the photosphere (光球层) plays a crucial role in how we perceive sunlight and understand solar phenomena. The photosphere is often described as the visible surface of the Sun, from which most of the sunlight that reaches Earth is emitted. It is not a solid surface but rather a thin layer of gas that emits light due to the high temperatures present. This layer is approximately 400 kilometers thick and has a temperature that ranges from about 4,500 to 6,000 degrees Celsius. The photosphere is where we observe various solar activities such as sunspots, solar flares, and prominences. Sunspots are temporary phenomena on the Sun's surface that appear as dark spots and are caused by magnetic field fluctuations. These spots can be cooler than the surrounding areas, which is why they appear darker. The study of sunspots has been important for understanding solar cycles and their impact on space weather, which can affect satellite communications and power grids on Earth. Another fascinating feature of the photosphere is its interaction with the Earth's atmosphere. When sunlight passes through the Earth's atmosphere, it scatters and refracts, resulting in beautiful phenomena such as sunrises and sunsets. The colors we see during these times are influenced by the particles in the atmosphere, which filter out certain wavelengths of light. This interaction between the photosphere and the atmosphere leads to a variety of visual effects that have inspired countless artists and poets throughout history. Moreover, the photosphere is also a subject of intense scientific research. Understanding the dynamics of this layer can provide insights into the Sun's behavior and its influence on the entire solar system. For instance, the release of energy from the photosphere can lead to solar winds, which are streams of charged particles that travel through space. These solar winds can interact with the Earth's magnetic field, causing phenomena such as the auroras. In conclusion, the photosphere (光球层) is more than just a layer of the Sun; it is a dynamic region that plays a vital role in solar activity and its effects on Earth. By studying the photosphere, we gain a better understanding of not only our Sun but also the broader universe. As we continue to explore and learn about these celestial bodies, the knowledge we gain will undoubtedly deepen our appreciation for the complexities of the cosmos.