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Stars?


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#1    The One X

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Posted 09 December 2006 - 06:39 AM

Something I just thought of. If we are going in circles around the Sun, why is it we see the same stars in space during the summer as in winter only in a different position, which can be explained by the tilting of earth?

Edited by The One X, 09 December 2006 - 06:40 AM.


#2    leadbelly

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Posted 09 December 2006 - 07:48 AM

Perhaps if you live toward extreme latitudes.

But here are the constellations for 9N 79W, six months ago, and for tonight.

(note to self: another never-reply-OP)

Edited by leadbelly, 10 December 2006 - 05:26 AM.


#3    frogfish

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Posted 09 December 2006 - 10:49 PM

We see the same stars, but at different times and different positions.

You can see the shift. It's called parallax.

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#4    Waspie_Dwarf

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Posted 09 December 2006 - 11:20 PM

Quote

Something I just thought of. If we are going in circles around the Sun, why is it we see the same stars in space during the summer as in winter only in a different position, which can be explained by the tilting of earth?


This depends on what you mean seeing the same stars. Some constellations visible during winter are not visible during summer and vice versa. This is because some of the stars visible during the night in on season will rise during the day at another time of year.

Only those stars which are far enough North (or South depending on which hemisphere you live in) to never set are visible all year. These stars are called circumpolar.

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