887 艾琳達 (/əˈlɪndə/ ə-LIN-də)是一顆離心率很大,與地球軌道交叉點距離很小(英语:Minimum orbit intersection distance),只有0.092AU的近地小行星。 887 Alinda (/əˈlɪndə/ ə-LIN-də) is a very eccentric, near-Earth asteroid with an Earth minimum orbit intersectio...
nounA definite or measured space to be maintained between two divisions of a body of troops, two combatants in a duel, or the like: as (in command), take yourdistances. nounInhorse-racing, the space measured back from the winning-post which a horse, in heat-races, must have reached ...
The Earth's orbit around the Sun is an ellipse, which means its distance from the Sun ___ during the year. A. varies B. is invariable C. stabilizes D. disappears 相关知识点: 试题来源: 解析 A。解析:本题考查词汇和语法。“varies”表示变化,地球公转轨道是椭圆,与太阳距离会变化;“is invar...
as “outer spaceatadistanceof2millionkmormorefromtheEarth”. daccess-ods.un.org daccess-ods.un.org 按照现行的无线电频率使用计划,“外层空间”一词的定义为“距离地球 200万公里或以上的外空”。 daccess-ods.un.org daccess-ods.un.org The pipeline transports iron ore ...
This means that distance from the Earth to the Moon can vary by 43,592 km. That’s a pretty big difference, and it can make the Moon appear dramatically different in size depending on where it is in its orbit. For instance, the size of the Moon can vary by more than 15% from when...
Distance from the Earth The planets' distance from the Earth varies because all the planets orbit the Sun on different elliptical paths. Keeping in mind that you are "seeing" the planets from Earth in this chart, you will notice that the Sun, Mercury, Venus, and Mars swap order as time ...
Some examples: the planet Mars has ½ the radius of the earth, the size of a geosynchronous orbit is 6.5 earth radii, and the earth-moon separation is about 60 earth radii. The mean distance from the earth to the sun is called an astronomical unit: approximately 1.5×1011m. The ...
For these hypothetical trajectories, we study the range of the values of the distance from the trajectory of the Earth (assumed on a circular orbit) as a function of selected orbital elements of the asteroid. The results of this geometric approach are useful to explain some aspects of the ...
Zubeneschamali is visible from Earth without needing binoculars or a telescope. The lower the Apparent Magnitude of a star or other object is, the easier it is to see in the night sky. An object with a magnitude greater than 6.5 cannot be seen without a telescope or other device. ...
Define polar distances. polar distances synonyms, polar distances pronunciation, polar distances translation, English dictionary definition of polar distances. n the angular distance of a star, planet, etc, from the celestial pole; the complement of the