# Orbiting the Sun beyond the Hill sphere

 P: 13 I was wondering if a spacecraft (or any other object) could 'co-orbit' the Earth by orbiting the Sun beyond our Hill sphere. For example, could this object 'hover over' the North (or South) Pole at >1,500,000 km? Thanks in advance!
 Sci Advisor HW Helper Thanks P: 26,148 hi xpell! yes, see http://en.wikipedia.org/wiki/Lagrangian_point (one theory of the origin of the moon is that it formed from the collision of the earth with a another body orbiting near the L4 or L5 Lagrangian point, see http://en.wikipedia.org/wiki/Giant_i...rigin_of_Theia)
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P: 15,196
 Quote by xpell For example, could this object 'hover over' the North (or South) Pole at >1,500,000 km?
No.

Well shoot. That response was too short. No, it can't.

P: 13
Orbiting the Sun beyond the Hill sphere

 Quote by tiny-tim hi xpell! yes, see http://en.wikipedia.org/wiki/Lagrangian_point (one theory of the origin of the moon is that it formed from the collision of the earth with a another body orbiting near the L4 or L5 Lagrangian point, see http://en.wikipedia.org/wiki/Giant_i...rigin_of_Theia)
Thank you, Tiny-tim. Rather than positioning "my" spacecraft in the Lagrangians, which I understand they're on the Body 1-Body 2 plane (in this case, the Sun-Earth plane), I was thinking in positioning it in a solar orbit with a slightly different inclination relative to the Sun-Earth plane. The (fancy) idea is having an Earth observatory 'hovering over' the ecliptic poles. I assumed that we must leave the Hill sphere to achieve this.

 Quote by D H No. Well shoot. That response was too short. No, it can't.
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