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how far is neptune's distance from the sun how far is neptune away from the sun in au how far is neptune away from the sun in km how long is neptune away from the sun how much is neptune away from the sun how far is neptune in miles from the sun how much miles is neptune away from the sun how much au is neptune away from the sun how much km is neptune away from the sun how far away is neptune from the sun on average
