Why at the south hemisphere the sun rises from the west?

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Discussion Overview

The discussion revolves around the apparent motion of the sun and stars in the Southern Hemisphere, specifically addressing the misconception that the sun rises from the west. Participants explore the effects of Earth's rotation and the perspective of observers in different hemispheres.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • Some participants assert that the sun does not rise in the west in the Southern Hemisphere, challenging the initial claim.
  • One participant questions the logic of the sun disappearing and reappearing in the west when moving from the Northern to the Southern Hemisphere.
  • Another participant explains that the stars appear to rotate in the opposite direction in the Southern Hemisphere due to the observer's orientation towards the South Pole.
  • There is a suggestion that the perception of the sky's rotation is influenced by the observer's position and orientation, with examples provided to illustrate this point.
  • A participant describes how the sun's apparent movement changes based on whether one is facing the North or South Pole, noting that at the poles, the sun rises differently due to the unique perspective.
  • Confusion is expressed regarding the visualization of these concepts, with participants attempting to clarify the relationship between orientation and the perceived motion of celestial bodies.

Areas of Agreement / Disagreement

Participants generally disagree on the initial claim that the sun rises from the west in the Southern Hemisphere. Multiple competing views are presented regarding the motion of the sun and stars, and the discussion remains unresolved with ongoing confusion about the concepts involved.

Contextual Notes

Participants express uncertainty about the visualization of celestial movements and the implications of different orientations. The discussion highlights the complexity of understanding these phenomena from various geographical perspectives.

ggeo1
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Hello

I wanted to ask why at the south hemisphere the sun rises from the west?
We know that Earth rotates reversely than the watch pointers(this happeness to both hemispheres),so all the "sky" (the stars etc..) goes to the opposite direction.

If someone could explain me..

Thank you!
 
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ggeo1 said:
Hello

I wanted to ask why at the south hemisphere the sun rises from the west?
We know that Earth rotates reversely than the watch pointers(this happeness to both hemispheres),so all the "sky" (the stars etc..) goes to the opposite direction.

If someone could explain me..

Thank you!

The sun does not rise in the West in the Southern Hemisphere.
 
That's ridiculous! So you're one step north of the equator at sunrise and you step over to the south. What's the sun going to do?? Disappear and appear in the West?
 
What might be confusing you is that the stars do rotate in the opposite direction in the south but that's because you, or your telescope, is facing the south pole intead of the north.
 
What might be confusing you is that the stars do rotate in the opposite direction in the south but that's because you, or your telescope, is facing the south pole intead of the north.

Yes..it confuses me.I can't visualize this.
I say,that it doesn't matter where you are,all the "sky" rotates from east to west.
 
Welcome to PF!

Hi ggeo1! Welcome to PF! :smile:

Just to confused you further :confused: :cry:

in the Northern hemisphere, outside the Tropics, the sun rotates clockwise, but in the Southern hemisphere, the sun rotates anti-clockwise. :smile:
 
ggeo1 said:
Yes..it confuses me.I can't visualize this.
I say,that it doesn't matter where you are,all the "sky" rotates from east to west.
That is true -
But if you lay on your back at the north pole (watch out for polar bears) the stars are moving from left to right.
If you lay on your back at the south pole the stars are still moving east to west but east is now on your right side so the stars appear to be moving in the opposite direction, from right to left.
 
ggeo1 said:
Yes..it confuses me.I can't visualize this.
I say,that it doesn't matter where you are,all the "sky" rotates from east to west.
To visualize this.
Find a oneway street and stand on one side with trafffic passing left to right (for east to west).
Cross the street where inorder to view the traffic you must now turn around just as you do when you turn south.
the traffic is now moving from right to left.
From your POV a change; not a change for the traffic.
 
If you are standing at the equator, you can choose to face either the north or south pole...
 
  • #10
It's a coordinate system thing. Facing the north pole, the sun always rises to your right, align with the south pole, it rises to your left. You can do that anywhere on earth, except at the poles. At the north pole, the sun rises at your left [west] because you are always facing south [and vice versa from the south pole].
 
  • #11
russ_watters said:
If you are standing at the equator, you can choose to face either the north or south pole...

That works even when you aren't at the equator...
 
  • #12
Thank you all for your answers.
I understand what you say but i can't understand this:

[URL=http://img444.imageshack.us/my.php?image=northvh6.jpg][PLAIN]http://img444.imageshack.us/img444/8218/northvh6.th.jpg[/URL]http://g.imageshack.us/thpix.php [/IMG

Why the man has to had the head up and not down and the reverse.
 
Last edited by a moderator:
  • #13
ggeo1 said:
Why the man has to had the head up and not down and the reverse.
He does not have to face in any direction, just take into account what the POV used is and how that View affects what he sees - reread post # 8.
 
  • #14
Ok,thank you all.

I understand what's happening but it confuses me a little.I'll find it!

Thank you!
 
  • #15
chemisttree said:
That works even when you aren't at the equator...
Well, yes, but if you are in the souther hemisphere and looking toward the north pole, you're looking at the ground, not the sky.
 

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