👉 The term "heliocentricity" refers to an astronomical concept in which a celestial body is considered to be located at the center of its own orbit, rather than being observed as a point in space. This means that all objects in the same system are moving around this central point at the same velocity and direction. In other words, it's like the sun and planets are all standing on the same level, not in different positions above Earth. This concept is crucial in understanding how celestial bodies