comet orbit 中文意思是什麼
comet orbit
解釋
慧星軌道-
It is also used for the difference between the observed position of an object ( minor planet or comet ) and the position calculated from an orbit
該術語也用於描述觀測的某天體（小行星或彗星）的位置與軌道計算值之間的差別。 -
The leonid shower occurs each november, when the earth ' s orbit takes it through the trail of particles shed by the comet tempel - tuttle as it swings around the sun once every 33 years
當地球穿過"坦佩爾-塔特爾"彗星尾部稠密的彗星碎片帶時，就會出現流星雨現象。這顆彗星在太陽系外圍軌道運行，它的運行周期是33年。 -
This at least accounts for the fact that a particular group of meteoroids shares with its parent comet more or less the same orbit, which can remain relatively unchanged over eons. an immediate consequence is that our earth makes periodic rendezvous with this meteoroid swarm, thereby culminating in a regular display of these celestial fireworks. to name a few, we have the lyrids in april and the geminids in december
流星雨的成因是地球遇上了一群密集的流星體，一般相信，流星群是由周期性彗星分解出來的物質或由瓦解了的彗核所形成，所以流星群和其母體彗星有大致相同的軌道，由於流星群的軌道頗為固定，所以地球會周期性地穿越這些流星群，形成固定出現的流星雨，例如四月天琴座流星雨十二月雙子座流星雨等。 -
As the comet can reach the orbit of jupiter, its own orbit is prone to change by jupiter s gravitation. in fact, the comet has been ripped into pieces by this immense force, and may vanish completely in a few decades time
由於這顆彗星遠日點在木星軌道附近，因此常受木星引力的影響而改變軌道，現時已被撕裂成數十塊，數十年後，這顆彗星恐怕便會灰飛煙滅。 -
Perhaps, the most famous one is the comet halley, it has a closed orbit with a period of 76 years
最出名的封閉式軌道彗星當然是以76年的周期繞日運行的哈雷彗星。 -
A comet with an open orbit will only visit the sun once. however, a comet with a closed orbit actually it is elliptical will visit the sun again and again
以開放式軌道繞日運行的彗星只會經過太陽一次，但封閉式軌道彗星即橢圓形軌道則可造訪太陽多次。
分享友人