4 ms·
They believe they know where its orbit is because of its gravitational effect on other bodies, but they have no way to know where it currently is along its orbi
by wolf550e 8y ago
They believe they know where its orbit is because of its gravitational effect on other bodies, but they have no way to know where it currently is along its orbit.
Its orbit has between 200 and 1200 times the distance from the Sun as Earth (it's an ellipse), and it takes 10 to 20 thousand years to revolve around the Sun once.
Depending on where it is currently on this orbit, it might be that we will need to wait for better technology or for it to plainly get closer to Earth before we can find it.
- vorticalbox 8y agoIf you know where the other planets are and know the effect 9 plays. Surely you can work out where it will likely be in the sky.
- wolf550e 8y agoIt doesn't affect planets, it affects very distant objects and only over long periods of time. https://en.wikipedia.org/wiki/Planet_Nine#/media/File:Planet_Nine_animation.gif https://en.wikipedia.org/wiki/Planet_Nine#/media/File:Planet... https://en.wikipedia.org/wiki/Planet_Nine#Observations:_Orbital_clustering_among_high_perihelion_objects https://en.wikipedia.org/wiki/Planet_Nine#Observations:_Orbi...