Of the solar system rotate as the Sun orbits the center of the galaxt in 250 MYRs. Because the orbit of the solar system is so great the parallax to remote objects is insignificant because humanity has existed only a small angle during its orbit.

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I really doubt that this is a homework question.

Nykkyo - there really is no "major axis" of the solar system, as the orientation of the orbit of each planet is a bit different from the others. The orientation of each planet's orbit is unlikely to be affected by the gravitational forces of stars other than the sun, given the tremendous distances involved. So I would not expect the planet orbits to "wobble" due to the solar system's orbit about the Milky Way.

I don't understand your second sentence at all - parallax has nothing to do with orbit changes. If you're asking about using parallax caused by the solar system's orbit about the Milky Way to measure distances to other galaxies - perhaps it would work, but as you point out it would require millions of years to run the experiment!

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Originally Posted by ebaines

I really doubt that this is a homework question.

Nykkyo - there really is no "major axis" of the solar system, as the orientation of the orbit of each planet is a bit different from the others. The orientation of each planet's orbit is unlikely to be affected by the gravitational forces of stars other than the sun, given the tremendous distances involved. So I would not expect the planet orbits to "wobble" due to the solar system's orbit about the Milky Way.

I don't understand your second sentence at all - parallax has nothing to do with orbit changes. If you're asking about using parallax cuased by the solar system's orbit about the Milky Way to measure distances to other galaxies - perhaps it would work, but as yoy point out it would require millions of years to run the experiment!

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I thought parallax was the view of a star from Earth at opposite sides of its orbit or Earths psition in the solar system as it goes around the center-of-Milky Way.

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Originally Posted by nykkyo

I thought parallax was the view of a star from Earth at opposite sides of its orbit or Earths psition in the solar system as it goes around the center-of-Milky Way.

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Yes - it's a technique for measuring distances to other stars that are relatively close by (a few dozen light years at most). For measuring the distance to stars further away, and certainly anything outside the Milky Way such as other galaxies, parallax is not a good technique. I was confused by your post talking about the orbit of the solar system about the galaxy and parallax in the same sentence.