#### trevor borocz johnson

**Registered Senior Member**

I read on wikipedia what I've always known that the parallax of earth on either side of the sun is used to measure the distance of stars. What I'm wondering is couldn't they be using there telescopes and camera's in the distant parts of our solar system to measure from each side of the sun and get a more precise measurement? Look at these stats. A camera or telescope near Saturn would provide 10 times the width of Earth.

**Planet Distance in AU Travel time**

....................................................................

Mercury 0.387 193.0 seconds or 3.2 minutes

Venus 0.723 360.0 seconds or 6.0 minutes

Earth 1.000 499.0 seconds or 8.3 minutes

Mars 1.523 759.9 seconds or 12.6 minutes

Jupiter 5.203 2595.0 seconds or 43.2 minutes

Saturn 9.538 4759.0 seconds or 79.3 minutes

Uranus 19.819 9575.0 seconds or 159.6 minutes

Neptune 30.058 14998.0 seconds or 4.1 hours

Pluto 39.44 19680.0 seconds or 5.5 hours....................................................................

Mercury 0.387 193.0 seconds or 3.2 minutes

Venus 0.723 360.0 seconds or 6.0 minutes

Earth 1.000 499.0 seconds or 8.3 minutes

Mars 1.523 759.9 seconds or 12.6 minutes

Jupiter 5.203 2595.0 seconds or 43.2 minutes

Saturn 9.538 4759.0 seconds or 79.3 minutes

Uranus 19.819 9575.0 seconds or 159.6 minutes

Neptune 30.058 14998.0 seconds or 4.1 hours

Pluto 39.44 19680.0 seconds or 5.5 hours

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