4 ms·
Maybe I missed it in the article, but why would P9 be at a 30 degree angle from all the other planets. Are they saying that what we know of how solar systems co
by sdy 9y ago
Maybe I missed it in the article, but why would P9 be at a 30 degree angle from all the other planets. Are they saying that what we know of how solar systems collapses to the nearly the same plane is wrong?
- Govindae 9y agoThat effect decreases further out in the gravity well.
- Pharylon 9y agoIt would have been knocked into an eccentric orbit early in the Solar System's formation (when we had a lot more planets). It couldn't have formed that far out. We know Uranus and Neptune are too far away - they formed closer in than they are now, and interactions with Saturn and Jupiter pushed them out. In fact, there's evidence that they switched places (Neptune originally being closer). Planet Nine could have been thrown into an eccentric orbit during this time. Here's a relevant wikipedia article: https://en.wikipedia.org/wiki/Nice_model https://en.wikipedia.org/wiki/Nice_model