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solar constant
The amount of incoming solar radiation per unit area, measured on the outer surface of Earth's atmosphere, in a plane perpendicular to the rays.
solar radiation
(astronomy) All the electromagnetic radiation and subatomic particles radiated from the Sun, especially that part that reaches the Earth
solar corona
(astronomy) The upper atmosphere of the sun, only visible during a total solar eclipse
solar eclipse
(astronomy) A phenomenon occurring when the Moon passes between the Earth and the sun.
solar energy
Energy in the form of electromagnetic radiation emitted from the Sun; especially that part of this energy that is converted into usable thermal or electrical energy by man.
solar cell
A semiconductor device that converts the radiant energy of sunlight into electrical energy
solar years
plural of solar year
solar year
The time it takes the Earth to pass once around the Sun, as reckoned with respect to the seasons and not the fixed stars (for instance from vernal equinox to vernal equinox).
solar letter
solar letters
plural of solar letter
