B Is the barycentre of the Pluto - Charon system also the L1 point?

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The barycentre of the Pluto-Charon system does not coincide with the L1 point, as clarified by a participant referencing the Earth-Moon system. Pluto and its moons, including Charon, can be considered a three-body system, but the influence of its smaller moons (Nix, Hydra, Kerberos, and Styx) on orbital dynamics is minimal. Quasi-stable orbits around L1 points are theoretically possible, but practical implementation for a space probe would require significant station-keeping efforts. The discussion also touches on the definitions of barycentre and L1 points, emphasizing their proximity to the respective masses involved. Overall, the thread highlights the complexities of orbital mechanics in the context of Pluto's moons.
Cerenkov
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Hello.

I've been reading about the Lagrange points... https://en.wikipedia.org/wiki/Lagrange_point ...and also about Pluto and its moons. Having discovered that the barycentre of the Pluto - Charon system lies at a point in space between the dwarf planet and its major moon Charon a number of questions have come to mind and I list them here to find out the answers and hopefully more.

1. Does the location of the aforementioned barycentre coincide with the location of the L1 point between Pluto and Charon?

2. According to the Wiki page... Although the L1, L2, and L3 points are nominally unstable, there are quasi-stable periodic orbits called halo orbits around these points in a three-body system. But, does Pluto and its moons qualify as a three-body system?

3. Is it possible for a natural body to remain in the kind of quasi-stable orbit mentioned above?

4. Is it possible for a carefully-placed space probe to remain in a quasi-stable orbit employing the kind of station-keeping used by the JWST?

5. At first glance the masses of Nix, Hydra, Kerberos and Styx would seem to be insufficient to play any significant role in the orbital dynamics of Pluto and Charon. But is that so or am I mistaken in my assumption?

Thank you for any help given.


Cerenkov.
 
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The L1 point is not the barycenter. Consider the earth-moon system.

Cerenkov said:
But, does Pluto and its moons qualify as a three-body system?
How many moons does Pluto have? Is it different from two?
Cerenkov said:
station-keeping
With enough rocket fuel. sure.
Cerenkov said:
any significant role
How significant is significant?
 
Cerenkov said:
1. Does the location of the aforementioned barycentre coincide with the location of the L1 point between Pluto and Charon?
What is the definition of the barycentre? Given this definition, is it nearer to the heavier mass or the lighter one?
What is the definition of the L1 point? Given this definition, is it nearer to the heavier mass or the lighter one?

Do you think that anything has changed since you last posted this question here?
 
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This is a duplicate of a previously posted question, already answered. Thread closed.
 
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