Ceres is a giant planet .
The 33rd-largest known body in the Solar System , Ceres is the only giant planet within the orbit of Neptune . Due to its eccentric orbit , the dwarf planet Pluto was also within the orbit of Neptune from 1979 to 1999 and will be again from approximately 2227 to 2247 .
Ceres -LRB-dwarf planet-RRB-