Megrez =δUrsae Majoris

简明释义

天权

英英释义

例句

1.In astronomy, we often refer to stars by their traditional names, such as Megrez =δUrsae Majoris which is the star located at the tail of the Big Dipper.

在天文学中，我们常常用传统名称来指代星星，比如Megrez =δUrsae Majoris，它是位于大熊座斗柄的星星。

2.While stargazing, I pointed out Megrez =δUrsae Majoris to my friend as one of the key stars in the constellation Ursa Major.

在观星时，我向我的朋友指出了Megrez =δUrsae Majoris，作为大熊座中的一颗重要星星。

3.The brightness of Megrez =δUrsae Majoris makes it a useful reference point for amateur astronomers.

由于Megrez =δUrsae Majoris的亮度，它成为业余天文学家一个有用的参考点。

4.If you look closely at the Big Dipper, you'll easily identify Megrez =δUrsae Majoris among the other stars.

如果你仔细观察北斗七星，你会很容易在其他星星中识别出Megrez =δUrsae Majoris。

5.During our astronomy club meeting, we discussed the significance of Megrez =δUrsae Majoris in navigation.

在我们的天文学俱乐部会议上，我们讨论了Megrez =δUrsae Majoris在导航中的重要性。

作文

In the vast expanse of the night sky, stars have fascinated humanity for centuries. Among these celestial bodies, one star stands out due to its unique position in the constellation of Ursa Major. This star is known as Megrez = δ Ursae Majoris. Located approximately 81 light-years away from Earth, Megrez = δ Ursae Majoris serves as a crucial reference point for stargazers and astronomers alike. It is the fourth brightest star in the Big Dipper asterism, which is part of the larger Ursa Major constellation. The name 'Megrez' comes from the Arabic word meaning 'the joining,' which is quite fitting, as it connects the two main sections of the Big Dipper. This star marks the point where the handle of the dipper meets the bowl, symbolizing a connection between different parts of the sky. Understanding the significance of Megrez = δ Ursae Majoris not only enhances our appreciation for the beauty of the cosmos but also enriches our knowledge of navigation and astronomy. Astronomically, Megrez = δ Ursae Majoris is classified as a spectral type A0 III star, indicating that it is a giant star, having exhausted the hydrogen fuel in its core. With a surface temperature of about 8,500 Kelvin, it emits a brilliant white light that can be seen from Earth. Its brightness and position make it an excellent marker for locating other stars and constellations in the northern sky. For amateur astronomers, Megrez = δ Ursae Majoris holds particular importance. It acts as a guidepost when searching for other celestial objects. By locating this star, enthusiasts can easily find nearby stars such as Phecda and Alioth, which are part of the Big Dipper. This interconnectedness of stars within the constellation demonstrates the harmony of the universe and the intricate relationships between celestial bodies. In addition to its navigational significance, Megrez = δ Ursae Majoris has been a subject of cultural interest throughout history. Many ancient civilizations used the stars for guidance, and Ursa Major was no exception. The constellation has appeared in various mythologies and folklore around the world, symbolizing different things to different cultures. For instance, in some Native American traditions, the Big Dipper is seen as a bear being pursued by hunters, while in Greek mythology, it represents the story of Callisto, who was transformed into a bear. In modern times, Megrez = δ Ursae Majoris continues to capture the imagination of stargazers. It is often included in educational materials for teaching astronomy, helping students understand the structure of constellations and the nature of stars. Its position in the sky makes it a reliable reference point for both novice and experienced astronomers. In conclusion, the star Megrez = δ Ursae Majoris is much more than just a bright point in the night sky. It serves as a vital link in the constellation of Ursa Major, aiding in navigation and inspiring countless stories throughout history. By studying stars like Megrez = δ Ursae Majoris, we not only learn about the universe but also connect with the rich tapestry of human culture and exploration. As we continue to gaze upward, let us appreciate the wonders of the cosmos and the stories that each star tells.

在浩瀚的夜空中，星星吸引了人类几个世纪的注意。在这些天体中，有一颗星星因其在大熊座中的独特位置而脱颖而出。这颗星被称为Megrez = δ Ursae Majoris。它距离地球大约81光年，是天文学家和观星者的重要参考点。它是北斗七星中第四亮的星星，属于更大的大熊座星座。'Megrez'这个名字源于阿拉伯语，意为“连接”，这非常贴切，因为它连接了北斗的两部分。这颗星标志着勺子的手柄与碗的交汇点，象征着天空不同部分之间的联系。理解Megrez = δ Ursae Majoris的重要性，不仅增强了我们对宇宙之美的欣赏，也丰富了我们对导航和天文学的知识。从天文学上看，Megrez = δ Ursae Majoris被归类为A0 III型光谱星，表明它是一颗巨星，已经耗尽了核心的氢燃料。其表面温度约为8500开尔文，发出明亮的白光，可以从地球上看到。它的亮度和位置使它成为寻找其他星星和星座的优秀标记。对于业余天文学家而言，Megrez = δ Ursae Majoris尤为重要。它在寻找其他天体时充当指路明灯。通过定位这颗星，爱好者可以轻松找到附近的星星，如Phecda和Alioth，它们也是北斗的一部分。星座内星星之间的这种相互关联展示了宇宙的和谐以及天体之间的复杂关系。除了其导航意义外，Megrez = δ Ursae Majoris在历史上也是文化兴趣的主题。许多古代文明利用星星进行导航，大熊座也不例外。这个星座在世界各地的神话和民间传说中出现过，代表着不同的事物。例如，在一些美洲土著传统中，北斗被视为一只被猎人追逐的熊，而在希腊神话中，它代表了卡利斯托的故事，她被变成了一只熊。在现代，Megrez = δ Ursae Majoris继续吸引着观星者的想象力。它通常被纳入教育材料中，用于教授天文学，帮助学生理解星座的结构和星星的性质。它在天空中的位置使其成为新手和经验丰富的天文学家的可靠参考点。总之，星星Megrez = δ Ursae Majoris不仅仅是夜空中的一个亮点。它作为大熊座中的一个重要环节，帮助导航并激发了无数历史故事。通过研究像Megrez = δ Ursae Majoris这样的星星，我们不仅了解到宇宙，还与人类文化和探索的丰富织锦相连。当我们继续仰望天空时，让我们欣赏宇宙的奇观以及每颗星星所讲述的故事。