A : spacecraft attitude control system comprising • at least one attitude control device (2), the attitude control device comprising • first and second magnets (3, 4) having magnetic dipole moments Ml and M2 respectively, each magnet (3, 4) comprising a north pole face and a south pole face; • the magnets (3, 4) being spaced apart along a length axis by a gap, • for each magnet the pole face closest to the other magnet being termed the closest face, the magnets being arranged with the closest faces being of the same pole; • the first magnet 3 being connected to a rotation mechanism (7), the rotation mechanism being adapted to rotate the first magnet about first and second axes (8, 9), none of the first axis (8), second axis (9) and magnetic dipole moment Ml, M2 of the first magnet (3) being parallel to the other.
展开▼
