General Question

LeopardGecko's avatar

A bunch of questions about the Solar System?

Asked by LeopardGecko (1237points) January 2nd, 2010

Which way does the Earth rotate the sun?
Which way does the Moon rotate the Earth?
Why doesn’t the Earth pull the moon towards it?
Why doesn’t the sun do the same to the Earth?
How many degrees is the Earth on a tilt?

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27 Answers

jaytkay's avatar

Which way does the Earth rotate the sun?
Counter-clockwise if you are looking down on the northern hemisphere
Here’s an animation.

Which way does the Moon rotate the Earth?
Also counter-clockwise
I found this video by Googling ‘moon orbit animation’

Why doesn’t the Earth pull the moon towards it?
It does. The moon would fly into space if it didn’t. It’s like twirling a weight on string – the weight (Moon) would fly away if the string (Earth’s gravity) didn’t pull on it.

Why doesn’t the sun do the same to the Earth?
Same answer

How many degrees is the Earth on a tilt?
About 23.5 degrees
http://www.physicalgeography.net/fundamentals/6h.html

XOIIO's avatar

Astrology class

all your answers right there

actually I’m just to lazy to google it.

Ivan's avatar

@XOIIO

*Astronomy

LeopardGecko's avatar

@XOIIO – No, I don’t believe they have classes for astrology. Learn the difference. Plus, this is a question and answer site as I do remember. Let’s keep it that way.

daemonelson's avatar

Which way does the Earth rotate the sun? Galatically speaking, clockwise.
Which way does the Moon rotate the Earth? Also galatically speaking, clockwise.
Why doesn’t the Earth pull the moon towards it? It does. But the moon is also drifting away from us quite slowly.
Why doesn’t the sun do the same to the Earth? Ditto.
How many degrees is the Earth on a tilt? 23.5 degrees.

XOIIO's avatar

What about inter galactically?

daemonelson's avatar

@XOIIO Intergalatically speaking, the earth rotates in all directions, since we have no solid frame of reference.

XOIIO's avatar

Sigh…This is why I love Fluther… intelligent responses.

Good point, however will we ever? I doubt we will until we travel to the center of the universe. (we’ll all be dead then anyway)

simone54's avatar

According to my mom the Earth doesn’t revolve around me.

Pazza's avatar

@LeopardGecko
Lets also leave the policing to the moderators. As your comment and now mine are both off subject!.......(well the top half of it anyway!) :-p

@XOIIO
If the universe is infinite, can it have a centre?

daemonelson's avatar

@Pazza A point of origin is quite possible. Not exactly the ‘centre’, but close enough.

YARNLADY's avatar

@Pazza Policing can and should be done by every jelly. Why make more work for the mods, when we could just discuss it among ourselves?

stranger_in_a_strange_land's avatar

Agree with @YARNLADY . If we can handle a simple violation with a simple friendly warning it makes life easier for the mods. That doesn’t mean that we should be wading into brawls though. Back on subject; the moon is also tide-locked so it always shows the same face to the earth; the Russian probe photographs from the early 60s were the first view humans ever had of the “back side” of the moon.

gailcalled's avatar

The earth, planets, asteroids, moons, and poor Pluto rotate around their axes. They revolve around other objects; the orbit is called a revolution.

The earth’s axis (around which it rotates) is on a 23.5˚ angle (as previously noted) with the plane of its revolution around the sun, in an elliptical orbit. That explains the terrestrial seasons.Visual of this:

The difference between astrology and astronomy is profound and worth more than a meh. It’s similar to the difference between psychology and phrenology (reading of the bumps on your head).

The earth does wobble on its axis, causing a slight “perturbation” in its rotation.

Here’s a visual of the moon’s perturbation.

stranger_in_a_strange_land's avatar

Ther perturbation in the earth’s rotation is evinced by the movement of the magnetic poles.

gailcalled's avatar

@stranger_in_a_strange_land: True and also where the North star is in relation to the magnetic poles, due to precession. There is also the issue of proper motion. It all gets very complicated, doesn’t it?

http://en.wikipedia.org/wiki/Pole_star

engineeristerminatorisWOLV's avatar

Which way does the Earth rotate the sun?
Ans:Counter-clock wise
Which way does the Moon rotate the Earth?
Counter-clock wise.

Why doesn’t the Earth pull the moon towards it?
The gravirational pull is counteracted by the centifugal force which keeps moon rorating in it’s orbit at a specific rate.
Why doesn’t the sun do the same to the Earth?
The same reason as above
How many degrees is the Earth on a tilt?
23.5 on it’s vertical axis.

gailcalled's avatar

@engineeristerminatorisWOLV; You have to be accurate with your terms; the earth, moon and other celestial bodies revolve around other bodies. They rotate on their axes.

One earth rotation is c. 24 hours; one complete revolution around the sun is c. 365 days.

gailcalled's avatar

edit: And I would add that the counter-clockwise motion of both earth and moon is only when you are standing in space above the northern hemisphere.

if you look down on the earth’s south pole, the motion is clockwise.

YARNLADY's avatar

@gailcalled I wondered about that, I’ve never read it without the north pole qualifier

engineeristerminatorisWOLV's avatar

@gailcalled : Yes,the reference was North pole .Thanks for the correction and accuracy measures.I really appreciate.+

mattbrowne's avatar

The Moon is actually moving away from the Earth. Let’s enjoy solar eclipses while we still can !

ChocolateReigns's avatar

Is this homework that you’re getting answers to?

UzZiBiKeR's avatar

The solar system revolves at approximately 70 degrees off of the galactic plane.

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