The phrase "sun disk" refers to a round shape that represents the sun. It can be found in ancient cultures and symbolizes the importance of the sun as a source of light and life. Full definition
Orbit, based partially on tantric drawings used for meditation, includes an ellipse shape that appears frequently in Parisian architecture, and Ra, which references the venerated sun disk of ancient Egyptian theology, was also partially inspired by the city's famous, unique light. (artforum.com)
In Egyptian mythology, the golden sun disk symbolized the Eye of Re, a potent female deity who embodied all of Amun's daughters and chief protector goddesses. (discovermagazine.com)