The Solar Physics Division of the American Astronomical Society (AAS/SPD) or (AAS-SPD), often referred to as simply the "Solar Physics Division" (SPD), is the primary trade organization of solar physicists in the U.S. It exists for the advancement of the study of the Sun and to coordinate of such research with other branches of science. SPD organizes meetings and certain solar-physics-specific prizes, occasionally advocates for solar physics in the political arena, and promotes outreach via formal and informal educational projects.