Lee Billings
Closer to home, Webb also will study the atmospheres of planets orbiting nearby stars to characterize their habitability and provide routine, up-close looks at planets, moons, asteroids and comets in Earth's solar system from Mars outward to the remote Kuiper Belt beyond Neptune. This combination...
to look at the stars through a telescope 用望远镜观察星星 来自《牛津高阶英汉双解词典》 26. Its rings were discovered by telescope from Earth, but space probes later found that spectacular rings surround some other planets. 它的圆环是从地球上用望远镜发现的,但是太空探测器后来又发现了围绕其他一些...
试题来源: 解析 答案:planets。我们可以用望远镜观察行星、彗星、流星和恒星,但是 planets 行星是最常被望远镜观察的天体之一;comets 彗星不常出现且观测难度较大;meteors 流星瞬间即逝难以用望远镜持续观察;stars 恒星通常较亮但一般用肉眼也能看到。反馈 收藏 ...
Galileo was the first person to see these thingsthrough a telescope.Galileo did not ___ the telescope. It was first made by aDutch lensmaker (镜片制造人). But Galileo improved the design so hewas ___ to study the stars and planets closely. Some people callhim the first astronomer (天文...
where to look May Podcast: What to Call a Star? Sky Tour Podcast This month we’ll look for tiny bits of Halley’s Comet; track down four planets; take stock of bright stars in the late-spring sky; and use the constellation Leo to learn what astronomers call all the stars that don’...
(100 inches) and the eyepiece has a focal length of 2.54 cm (1 inch), then the magnification will be 100. Large magnifications are very useful for observing the Moon and theplanets. However, sincestarsappear as point sources owing to their great distances, magnification provides no additional...
A. All the stars are orbited by their own planets.B. We currently have a telescope that can be used to see other planetsC. By a very direct method,the astronomers measured subtle distortions.D. By a very indirect method,the astronomers measured subtle distortions. 相关知识点: 试题来源: ...
Brown dwarfs are too small to trigger the nuclear engines in stars, but are more massive than most planets. They are unbound, free-flying objects in the universe. And with this new research, scientists have improved our understanding of these elusive free-floating worlds and earned a good ...
It’s important to research which stars will be in the sky at any given time. Magazines such asSky & Telescope and Astronomypublish charts each month on their websites showing what's visible, including the planets.Astronomy software packages, like Stellarium, have much of the same information....