SOLAR SYSTEM

Detailed explanation-1: -Charon’s orbit around Pluto takes 153 hours – the same time it takes Pluto to complete one rotation. This means Charon neither rises nor sets, but hovers over the same spot on Pluto’s surface. The same side of Charon always faces Pluto, a state called tidal locking.

Detailed explanation-2: -The other moons of Pluto – Nix, Hydra, Kerberos and Styx – orbit the same barycenter but they are not large enough to be spherical and they are simply considered to be satellites of Pluto (or of Pluto–Charon).

Detailed explanation-3: -The known moons of Pluto are: Charon: Discovered in 1978, this small moon is almost half the size of Pluto. It is so big Pluto and Charon are sometimes referred to as a double planet system. Nix and Hydra: These small moons were found in 2005 by a Hubble Space Telescope team studying the Pluto system.

Detailed explanation-4: -Pluto is officially classified as a dwarf planet.

Detailed explanation-5: -The image reveals a highly-elongated satellite, roughly 4.5 miles [7 kilometers] across in its longest dimension and 3 miles [5 kilometers] in its shortest dimension.