Solar sailing is a non-traditional propulsion system that is attracting growing interest due to its various benefits compared with traditional chemical propulsion. A solar sail generates thrust through the momentum exchange resulting from the interaction between the sail surface and the incident solar radiation. This propulsion method provides continuous thrust without requiring any propellant consumption. These characteristics make solar sailing a viable option for long-duration missions. This thesis focuses on orbit optimization for an interplanetary mission targeting an asteroid, carried out with a solar sail-propelled CubeSat. The study of asteroids is a topic of interest in various fields. The ancient origin of these celestial bodies makes them an essential source of information on the history and formation of our Solar System, the origin of the Moon and the development of life on our planet.