A. Planets are small bodies. B. Planets are stars. C. Planets are large bodies that move around stars. D. Planets are comets. 相关知识点: 试题来源: 解析 C。这句话的意思是行星是围绕恒星运行的大天体,答案是 C。A 选项表示行星是小天体;B 选项表示行星是恒星;D 选项表示行星是彗星,均不符合...
A. Planets that orbit our sun. B. Stars that orbit other stars. C. Planets that orbit stars other than our sun. D. Moons that orbit planets. 相关知识点: 试题来源: 解析 C。解析:文章中明确提到“These are planets that orbit stars other than our sun.”,即系外行星是围绕除太阳之外的恒星...
intotheearlyevolutionofstars. ( )1.Howisthefirstparagraphdeveloped? A.Bylistingseveralfigures. B.Bymakingcomparisons. C.Bydescribingtheprocess. D.Byanalyzingcauseandeffect. 30分钟能力强化组合练(十) 第38页 38 ( )2.Whatcanwelearnfromthepassage? A.ThestarEarendelisquitedifferentfromtheSun. B.BrianW...
Extrasolar planets, orexoplanets, are planets that orbit stars other than the sun.Binary systems can possess exoplanets in stable orbits, some of which are closer to one star in the binary and thus orbit that star much as Earth orbits the sun, in what is called a circumstellar orbit. Other...
Two identical stars are moving in a circular orbit around one another,with an orbital separation of 5.What is the greatest distance at which HST,in blue light (450μm ),could resolve the stars?HST哈勃望远镜 主镜直径2.4米 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 ...
I once received an interesting inquiry from a woman who wanted to know the meaning of the terms "morning stars" and "evening stars." She wrote: "I mean, they're not stars … they're planets, right? So why do we call them stars? And is a 'morning star' only visible in the mornin...
There are enough gases in the mesosphere to create friction which causes the meteors to burn up. We can see those at night as shooting stars. Thermosphere: Thin Atmosphere Above the mesosphere lies the thermosphere, one of the highest layers of Earth’s atmosphere. ...
–Only lunar occultations of planets and bright stars are listed. –Solstice seasons where the International Space Station reaches full illumination are approximate; the ISS gets boosted periodically, and therefore it’s impossible to project its precise orbit months in advance. –Comets come and go...
TV truthtellers David Attenborough, Rick Steves, Robert Kuhn; superstars Naomi Osaka and her pick of 30 olympics all stars who have generation purposes beyonD their sports EconomistDiary.com - 21-2 is 8th last year to teachets and students learning what onlt youth as susatainability generation...
varied nonlinearly through the canopy and then moved upward with time since burn. Given that fire effects peaked in the mid-canopy and were often on the scale of 2 to 3 m in height difference, it is unlikely that on-orbit GEDI data will have the sensitivity to detect these same changes....