A binary asteroid is a type of asteroid system consisting of two asteroids orbiting around a common center of mass. These asteroids are typically in close proximity to each other, with their orbits being influenced by their mutual gravitational interactions. Binary asteroids are interesting objects for study because they can provide insights into the formation and evolution of asteroid systems, as well as the dynamics of small solar system bodies. Studying binary asteroids can also help scientists better understand the overall population and distribution of asteroids in our solar system.