Where is earths position in relation to the universe?

Question

Where is earths position in relation to the universe?

Answer 1

There are no classic, preferred locations within the universe. The universe is what's known as isotropic, meaning that no matter where you might be in it that place appears to be at the center. Earth has no specific "position" in the universe.

Answer 2

  It is about 5 billion light years away from the center and a billion or so away from the point that the universe begins to go out of existence

Answer 3

OK-- I will bite--

The universe has been measured at 156 billion light years wide (minimum size)--  http://www.space.com/scienceastronomy/my...

There is not a CENTER-- everything appears to be moving away from us except a few galaxies in the local group which are gravitationally bound.

Where-- somewhere -------- at least 156 billion light years from ????

Answer 4

It's all about the gravity!

The moon cycle is 24hrs. 50.5 minutes. High tide and low tide follow each other every 12hrs. 25 minutes. The tide is 50ft. in the Bay of Fundy New Brunswick.

                                                                           http://gildartphoto.com/weblog/2006/09/1...



The first moon cycle is monthly, from full moon to full moon, every 29.53039 days.



http://www.rc-astro.com/photo/id1128.htm...



The counter-clockwise lunar ellipse takes 31yrs. and a couple of days (depending on leap years) to return to it's same position (relative to the stars). Earth is not the only body exerting it's gravitational pull on the moon at this time. This is due to the eccentricity and the inclination of the moon's orbit. This effect is called libration, or, a wobble.

                                                                                                                http://apod.nasa.gov/apod/ap010218.html







Atmospheric "tides" affect geo-magnetism and radio field strength. The Earth's crust is affected by the moon. Moscow is estimated to rise and fall by 20 inches due to the moon's gravitational pull.



http://cache.eb.com/eb/image?id=80456&re...





The moon is on the nodes when it's plane and the plane of the Earth intersect. This occurs every 18.6 years. Besides the rest of the planets on their orbital plane, the Milky Way too, has a plane. It is on a galactic scale. The Milky Way, an ellipsoid, is a squashed sphere rather than a rugby ball (5 to 1 ratio). It is 16 kiloparsecs in diameter. It is slightly reminiscent of the Andromeda Galaxy save it is irregular and of uneven density.



http://www.rc-astro.com/photo/id1034.htm...



On the second most outer spiral arm of the Milky Way, or, where our solar system lies, it is less dense than towards the center. Still, though the galactic case of Newton's laws is more highly complex than the solar, so apparently our Sun, on one of the spiral arms, is heading with determination towards a dark void in space between the constellations of Hercules and Lyra.



http://www.rc-astro.com/photo/id1166.htm...



http://www.flickr.com/photos/hshdude/219...



The constellation Sagittarius is roughly the nucleus of the Milky Way. Our solar system revolves around it in it's movement through the Milky Way.



http://www.allthesky.com/constellations/...



Our nearest neighbor is the triple binary, Alpha, Beta, and Proxima Centauri, which is also located in the Milky Way. Alpha and Beta are binary stars revolving around each other, while Proxima revolves around the pair.



http://www.allthesky.com/various/by32abc...



In order to help give these facts some perspective in both speed and distance (taking into account the galactic case of Newton's laws), Earth spins at 1000 MPH (approx.) at the equator. It orbits the Sun at 66,000 MPH (approx.). Our solar system meanwhile, dashes through the Milky Way at 481,000 MPH (approx.).



At the very least I hope besides some symmetry, I've been able to produce decent screensavers, Although I know that through due diligence, perhaps better can be found.



http://antwrp.gsfc.nasa.gov/apod/ap01012...

Answer 5

Right smack in the middle.

Of course, that would be true no matter where you were. . . so not much help to you.

Answer 6

The earth's position is at the center of the universe ... and so is any other star, planet, etc.

You see, according to the theory of Relativity, there is no absolute reference of time or space in the universe. When Hubble observed that all galaxies moved away from us, it is as if we are the center of everything. But that observation is true for any observer, anywhere in the universe and at any time.

Likewise, we observe the Cosmic Microwave Background (CMB) coming from all directions in the sky. This 'left-over' of the Big Bang is indeed observed as a sphere around us and not a point in space.

That is because, the farther away you see in space, the farther away you see in time. Hence, the beginning of the universe is seen in any direction!

Answer 7

i think its about 1.2

Answer 8

Now, the two theories are that the universe is infinite in size or the universe is finite in size but unbounded. If the universe is infinite than obviously it has no center therefore the Earth is wherever you define it.

The second theory that the universe is finite but unbounded means it has a certain size but has no edge. Geometrically this makes little sense, but think of it this way. If I were to take a space ship in an absolutely strait line from Earth I would end up right back at Earth coming from the opposite direction I left from. Have you ever played an old video game where if you fly off the map you end up on the opposite side? Its like that. Its whats known as a hypersphere... a sphere with another dimension. That means the Earth is both at the center and not. The center if it does work that way is wherever you decide it is.

Answer 9

I'm sure there is an answer to that especially since we know where other galaxies are.  Right now our solar system is in on of the arms of our spiral milky way galaxy,  Pretty much on the edge of our galaxy.  THat's about as best as I can do  

Answer 10

i like to use the classical approach to answer your question:

the earth is in the very center of the universe... and the universe is flat... if you venture too far, you will fall off the edge... oh and there are space monsters along the way

Answer 11

In the whole universe, we're situated inside the Milkyway galaxy - a group of about 50 galaxies that are held together, more or less, through gravity.  We see other galaxies all around us, in every direction.  

Within the Milkyway, a galaxy about 100,000 light years across, we sit about 2/3 of the way out on an arm, about 30,000 light years out from the center.

Answer 12

The Earth is inside the Universe.

There does not appear to be a center to the Universe.  However, the Earth's movement can be measured against the Cosmic Microwave Background.  Perhaps you could do some math and work out where the bits that became the Earth might be relative to where we are now were at the instant of the Big Bang.  But it should be pointed out that the Universe was at least as large as the Visible Universe at the time of the Big Bang.

Answer 13

we are the 3rd position from the sun in our solar system we stay at a tempature where is livable for some reason even though mercury is the planet 1st to the sun it is not the hottest planet in our solar system that would be the second which is venus because of the clouds that cover it like a blanket and sucks in the gases..i dunno just some fyi..i fell like being smart today

Answer 14

before you can answer that you need to know the nature of universe.... and we are still working on that

Answer 15

Our best theories today indicate that the universe is finite but wraps upon itself in an unobserved dimention.

To put this into perspective If you were a 2 dimentional being living in a univers that consisted of a peice of paper the center of the paper would be the center of your universe.  If that same being was living on the surface of a baloon, then the universe would have no 2 dimentional center.

If our universe it the 3D equivilent of the baloon then everyone is at the center of the universe from their perspective since ther is an equal amount of universe in every direction.  If however, we are on the 3D equivelent of a doughnut (torus) then noone is at the center of the universe.

Regardles of which model you prefer, it is also likely that the baloon is deflated and crumpled up inot a little wad, but that the wad is unobserved, just as the 2D being would not realize if you crumpled up the peice of paper he was living on.