cонячний екватор
magnetic equator / aclinic line / dip equator
equator
celestial equator
astronomic(al) equator
terrestrial equator
solar-powered helmet radio
solar energy-propelled rocket
solar gas engine
solar photon rocket engine
orbital solar power plant
solar activity
solar cycle
solar eclipse
solar energy
solar radiation
solar sail
solar wind
solar drone
solar-powered drone
solar power system