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What is Solar Luminosity and Brightness Explained about?

The brightness of a star or light source decreases with the inverse square of the distance from the source due to the surface area of the spherical wavefront increasing with distance from the source. The inverse square law states that brightness is equal to the luminosity of the source divided by 4π times the distance squared. Doubling or tripling the distance from the source decreases the brightness by a factor of 4 or 9, respectively. Examples are provided to demonstrate calculating brightness, luminosity

Author

soccersups

Language

EN