S/Retrograde and prograde motion

rotational axis. Prograde or direct motion is more normal motion in the same direction as the primary rotates. However, "retrograde" and "prograde" can also

is the sum of a prograde and a retrograde circular polarized wave. For frequencies ν < 0.9 the retrograde wave can be neglected, and there remains the

outer irregular satellites whose prograde and retrograde orbits are much farther from Jupiter and have high inclinations and eccentricities. The largest of

much farther from Neptune and at high inclination: three of these have prograde orbits, while the remainder have retrograde orbits. In particular, Nereid

S/2020 S 1, S/2006 S 9, S/2007 S 5, S/2004 S 40, S/2019 S 2, S/2019 S 3, S/2020 S 2, S/2020 S 3, S/2019 S 4, S/2004 S 41, S/2020 S 4, S/2020 S 5, S/2007