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No planets stay in same place,that is they always move.but sun stays in same place

2006-07-23 20:40:11 · 11 answers · asked by spacequestioner 1 in Science & Mathematics Astronomy & Space

11 answers

Stars are stationary; planets revolve. This is one of the notable differences between these two types of heavenly bodies. It has to do with density and gravity. Because the sun is made up of such dense matter, it stays situated in one place and pulls other bodies to it, like planets and moons. Planets and moons are much lighter because they are not engaging in nuclear fission.

2006-07-23 20:44:36 · answer #1 · answered by Gestalt 6 · 0 2

One way to realize how the barrycenter of all the planets revolving in an orbit relative to that barrycenter is to compare it to the electron cloud about the neucleous of the atom.
The Sun revolves relative to each planet orbit all at the same time.So we can say the the sun is spining around it the same way the planets are spining around.
So the Initial belief that the sun was revolving around the earth was not exactly wrong.At that time they did not take relative motion seriously.
The Sun appear to stay in same place because its planatary orbital of the moving barry center between planet is only about 480 mile from its center of mass.Therefore we do not see it move
Neverthe less the sun and planets as a system revolve around the center of mass of the galaxy
so the sun has relative motion and so same applies to the planets.

2006-07-25 18:04:27 · answer #2 · answered by goring 6 · 0 0

The sun rotates around the center of the milky way galaxy. We rotate around the center of the milky way too, but we're rotating around the sun at the same time. OH - and the milky way is rotating, too.

The Galaxy Song, by Monty Python (from The Meaning of Life)

Just remember that you're standing on a planet that's evolving
And revolving at nine hundred miles an hour,
That's orbiting at nineteen miles a second, so it's reckoned,
A sun that is the source of all our power.
The sun and you and me and all the stars that we can see
Are moving at a million miles a day
In an outer spiral arm, at forty thousand miles an hour,
Of the galaxy we call the 'Milky Way'.
Our galaxy itself contains a hundred billion stars.
It's a hundred thousand light years side to side.
It bulges in the middle, sixteen thousand light years thick,
But out by us, it's just three thousand light years wide.
We're thirty thousand light years from galactic central point.
We go 'round every two hundred million years,
And our galaxy is only one of millions of billions
In this amazing and expanding universe.

The universe itself keeps on expanding and expanding
In all of the directions it can whizz
As fast as it can go, at the speed of light, you know,
Twelve million miles a minute, and that's the fastest speed there is.
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's bugger all down here on Earth.

2006-07-24 03:46:53 · answer #3 · answered by © 2007. Sammy Z. 6 · 0 0

The sun appears to stay in the same space because of our perspective. However, the sun revolves around the center of our galaxy, which in turn is in motion relative to the other galaxies in the universe.

It is like when you tie a string around a ball and whirl it around your head. Your head will always appear to be in the same spot relative to the motion of the ball, even if you are walking down the road.

2006-07-24 03:45:00 · answer #4 · answered by Raymond C 4 · 0 0

Our solar system orbits around the center of the Milky Way Galaxy. So the Sun is not in a fixed position. So it also revolves.

2006-07-24 07:42:20 · answer #5 · answered by mspentinum 3 · 0 0

Everything is constantly moving. It just depends on what point of reference you use. From the reference point of the planets' orbits, the sun does stay still. However, if the point was in another solar system, the sun and all its planets would appear to be moving very quickly.

2006-07-24 03:45:27 · answer #6 · answered by Leon 5 · 0 0

Sun doesn't stay in the same place. It just look like that to us.

Sun moves trough the Milky Way, which moves trough the space.

Meaning: Earth and other planet have rotation and revolution, and some more types of moving trough the space.

2006-07-24 03:47:47 · answer #7 · answered by no one 6 · 0 0

the sun "stays in the same place" only when using the sun as center of frame of reference ... our sun for example, revolves around the galactic center .... it's NOT stationary

just looks that way to earth-people

2006-07-24 03:43:29 · answer #8 · answered by atheistforthebirthofjesus 6 · 0 0

The Sun is revolving around its own core, and orbiting the galactic core

2006-07-24 03:43:38 · answer #9 · answered by Pseudo Obscure 6 · 0 0

who says the sun doesn't move? it orbits the centre of the galaxy, about once every 200-250 million years

2006-07-24 03:43:55 · answer #10 · answered by visionary 4 · 0 0

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