Question:

How does the sun stay in position in the sky?

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  1. The sun is actually 93 million miles away and is orbiting the center of the galaxy, with its Solar System going along with it. Its position in our sky is determined by Earth's rotation around it, and by our axial tilt.

    "The Sun's completes an almost circular orbit of the center (of the galaxy) about every 250 million years."


  2. It does NOT stay in position--- it moves across the sky on the Ecliptic plane--- (which is the path of the sun).



  3. It does'nt. The sun is constantly orbiting around the center of the Milky Way galaxy. Just as planet Earth is obeying the laws of gravity, so is the sun.

  4. Everything in the Universe is constantly moving.  Luna revolves around the Earth roughly once every 29 days, Earth revolves around the Sun once every year, and the Sun revolves as the Milky Way rotates - roughly once every 200,000,000 years, it completes one rotation.  

  5. The moon orbits us, we orbit the Sun and the Sun is following it's own orbit in our arm of the Milky Way. It's no more static than early Astronomers thought Earth.

  6. The same way the earth stays in position orbiting the sun

    Our sun is orbiting the center of the Milky Way galaxy the same way

    If you are looking for a more basic answer, then it's due to gravity and momentum.

  7. Voyager 2 is an unmanned interplanetary spacecraft launched on August 20, 1977 and only just reached the heliosphere (in 31 years).  

    The heliosphere is a bubble in space "blown" into the interstellar medium (the hydrogen and helium gas that permeates the galaxy) by the solar wind. Although electrically neutral atoms from interstellar space can penetrate this bubble, virtually all of the material in the heliosphere emanates from the Sun itself.

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    The fact that there is a heliosphere proves that our solar system is moving in some direction (relative to what, I haven't a clue).

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  8. It doesn't.  We consider the sun fixed in position only so that we have a convenient reference point for reckoning the position of other objects in the solar system.

    It's like saying the flight attendant on a airliner is approaching you at a normal walking pace:  you reckon her motion relative to your "fixed" position and don't consider that you're both hurtling through the air at a sizable fraction of the speed of sound (relative to the ground), and that the ground itself is whizzing around the Sun at an even more astounding speed.

    Cue Eric Idle.

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