Agency
P07 Barycentric balls Figure X2
Two objects (mass M and m) in orbit about a common centre of mass or barycentre. The objects are separated by a distance d and the distance between the centre of the most massive object M and the barycentre is B.
Barycentric balls - classroom demonstration video, VP07a
Barycentric balls in space - classroom demonstration…
Reaching orbit
3D-printed rovers play spot the ball
