猎户座大星云To the eye (through a telescope),much of the Orion Neb
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猎户座大星云
To the eye (through a telescope),much of the Orion Nebula looks like a glowing cloud of gas.
What type of spectrum would you expect to see from the glowing parts of the nebula?Why?
To the eye (through a telescope),much of the Orion Nebula looks like a glowing cloud of gas.
What type of spectrum would you expect to see from the glowing parts of the nebula?Why?
猎户座星云是猎户星协的核心,在星云的附近有许多恒星组成一个银河星团,称为猎户座星云星团,著名的“猎户座四边形”聚星就位于星云之中.在猎户座星云星团和猎户座四边形中,有许多表面温度高达几万度的O型和早B型的热星,它们发出的强烈的紫外辐射使星云受到激发而产生辐射,因此星云的光谱主要是发射线.
Through a telescope the surface of the Mars when it comesnea
英语翻译It is easier for a camel to pass through the eye of a ne
it is easier for a camel to go through the eye of a needle t
it is easier for a rich man to pass through the eye of a nee
"Galileo built a telescope through which he could study the
the principle of the telescope
有谁知道Putting a camel through the eye of a needle的意思?
the eye of a hurricane
what is the sepcial importance of a telescope in space
this is the first time i watch stars through a telescope改错
he built a telescope through which he could study the skies.
This is the first time I watch stars through a telescope 改错