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If a star has a parallax of .005 arcsec, what is its distance? How does your...

If a star has a parallax of .005 arcsec, what is its distance? How does your calculated distance compare to the size of our Milky Way Galaxy (about 30,000 pc)? The Large Magellanic Cloud is one of the closest galaxies to us at 50,000 pc away. If .005 is the smallest parallax we can measure, do you think trigonometric parallax is a useful technique for measuring distances to galaxies? Explain your answer.

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