Neptune has five main rings named Galle, Leverrier, Lassell, Arago, and Adams. These rings are relatively young, faint, and composed mainly of dark material likely including ice and radiation-processed organic compounds
. In addition to these five principal rings, the outermost ring, Adams, contains four prominent ring arcs-clumps of dust that remain stable rather than spreading out evenly. These arcs are named Liberté, Égalité, Fraternité, and Courage and are thought to be stabilized by the gravitational influence of Neptune’s moon Galatea, which orbits just inside the Adams ring
. Some sources mention six rings, but the consensus is that Neptune has five main rings plus these four distinct arcs within the Adams ring
. Summary:
- 5 main rings: Galle, Leverrier, Lassell, Arago, Adams
- 4 prominent ring arcs within the Adams ring: Liberté, Égalité, Fraternité, Courage
- Total: 5 main rings plus 4 arcs, making Neptune's ring system complex and unique
