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Earth Science

 
 
Reply Sat 19 Dec, 2015 11:53 am
If Earth rotated from north to south, the North Star would appear to
1) set in the south
2) set in the north
3) move in a circle in the sky
4) remain stationary
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Type: Question • Score: 2 • Views: 642 • Replies: 4
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neologist
 
  1  
Reply Sat 19 Dec, 2015 06:18 pm
@deepesh32,
Picture the relationship of the earth relative to the arc of solar orbit.
You are in New Jersey at noon.
Suddenly the earth begins rotating north to south.
Assuming you survive the resulting geological catastrophes. . .
Can you picture the difference in your perception of starset that might take place if your position on earth moves north (earth moving north to south towards the 'night' side) or south (earth moving north to south towards the 'day' side)???

In our current perspective, we always see heavenly bodies setting in the west.
But, does the earth turn from west to east? Or east to west? One always replaces the other.

So the answer to your question, IMO, is it depends.
ekename
 
  1  
Reply Sat 19 Dec, 2015 08:28 pm
@neologist,
Quote:
In our current perspective, we always see heavenly bodies setting in the west.


Must make you wonder why they call it the North Star?

Quote:
So the answer to your question, IMO, is it depends.


More merriment, I love this season.

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FBM
 
  1  
Reply Sat 19 Dec, 2015 08:47 pm
@deepesh32,
2) Is this homework?
ekename
 
  1  
Reply Sat 19 Dec, 2015 09:11 pm
@FBM,
Quote:
2) Is this homework?


It always pays to check your homework.
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