Quote:
Originally Posted by chendoh
A large mass creates a gravity well...The Sun, in it's famous funnel shape, but...

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The funnel shape is not a true representation, that is to say a misleading oversimplification. That it is famous is more a matter of culture rather than its efficacy in representing gravity.
The funnel is usually illustrated with its axis aligned with the Sun's axis, but there are actually an infinite number of these funnels with their axes extending from the center of the Sun. Drawing them all in leaves you with a sphere, which is what you started with in your large mass.
The planets, it is thought, are all more or less moving in a plane because they formed together with the Sun.
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