Heliology refers to the study of the sun, and there are various synonyms that can be used in place of this term. One of the most common is solar science, which is a broad field of study that includes the sun, its properties, and its interactions with other celestial bodies. Another synonym for heliology is heliophysics, which focuses specifically on the physics of the sun, including its magnetic fields, solar wind, and flares. Other synonyms for heliology include solology, solenology, and solarcheology, all of which refer to the study of the sun and its impact on the Earth and beyond.