How does the night time sky change from the beginning of winter to middle to end?

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and how does the night time sky differ in winter compared to summer?

are the constellations unseeable that were observed in winter night time sky in summer? (assuming in northern hemispherer?

how about Spring and Autumn night time skies.

please describe and explain.


this question was asked before, i didnt really think the answers thought it about it very much. they were mentioning the earth spins in less than 24 hours, so the night time sky changed every year from time to time.

yet the earth still revolves around the sun at a standard rate and the spinning should be the same each year shouldnt it.??

in winter you see on Jan 18th in the night sky same stars as the year before?

which constellations in winter as opposed to summer nights?

please explain.

please explain this one also.
Thanks for your answers~!
 
That's a lot of explaining to try to do on Yahoo!Answers! Whole books have been written on the subject, and that's probably where you should start, since they can be illustrated, and Y!A can't. I'd recommend NightWatch by Terence Dickinson (Firefly).

There are two motions involved: the rotation of the Earth on its axis, which repeats itself every 24 hours, and the revolution of the Earth in its orbit around the Sun, which repeats itself every 365 days. Either way, the same stars keep reappearing in the sky, but they gradually shift over the year. If you wait two hours on a single night, you will see the same stars as will appear a month later at the same time of night. Because the Sun occupies a place in the sky, there is always part of the sky you can't see on a particular night. Because the Sun moves a bit every day, this "invisible" part of the sky shifts every day.
 
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