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  2. Daylight - Wikipedia

    en.wikipedia.org/wiki/Daylight

    This includes direct sunlight, diffuse sky radiation, and (often) both of these reflected by Earth and terrestrial objects, like landforms and buildings. Sunlight scattered or reflected by astronomical objects is generally not considered daylight. Therefore, daylight excludes moonlight, despite it being reflected indirect sunlight.

  3. Orders of magnitude (illuminance) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    Brightest sunlight Luminance. This section lists examples of luminances, measured in candelas per square metre and grouped by order of magnitude. Factor

  4. Sunlight - Wikipedia

    en.wikipedia.org/wiki/Sunlight

    Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light. On Earth, sunlight is scattered and filtered through Earth's atmosphere as daylight when the Sun is above the horizon.

  5. Sky brightness - Wikipedia

    en.wikipedia.org/wiki/Sky_brightness

    In the first case, the Sun has just set but still illuminates the upper atmosphere directly. Because the amount of scattered sunlight is proportional to the number of scatterers (i.e. air molecules) in the line of sight, the intensity of this light decreases rapidly as the Sun drops further below the horizon and illuminates less of the atmosphere.

  6. Planetshine - Wikipedia

    en.wikipedia.org/wiki/Planetshine

    Sunlight is reflected from Earth to the night side of the Moon. The night side appears to glow faintly, and the entire disk of the Moon is dimly illuminated. Earthshine reflected from the Moon, as seen through a telescope. The bright region is directly illuminated by the Sun, while the rest of the Moon is illuminated by sunlight reflected from ...

  7. Moonbow - Wikipedia

    en.wikipedia.org/wiki/Moonbow

    A moonbow (also known as a moon rainbow or lunar rainbow) is a rainbow produced by moonlight rather than direct sunlight. Other than the difference in the light source, its formation is the same as for a solar rainbow: It is caused by the refraction of light in many water droplets, such as a rain shower or a waterfall, and is always positioned ...

  8. MoonLIGHT - Wikipedia

    en.wikipedia.org/wiki/MoonLIGHT

    MoonLIGHT (Moon Laser Instrumentation for General relativity High accuracy Tests) is a laser retroreflector developed as a collaboration primarily between the University of Maryland in the United States, and the Italian National Institute for Nuclear Physics - National Laboratories of Frascati (INFN-LNF) to complement and expand on the Lunar Laser Ranging experiment started with the Apollo ...

  9. Corona (optical phenomenon) - Wikipedia

    en.wikipedia.org/wiki/Corona_(optical_phenomenon)

    Lunar corona A solar corona up Beinn Mhòr (South Uist). In meteorology, a corona (plural coronae) is an optical phenomenon produced by the diffraction of sunlight or moonlight (or, occasionally, bright starlight or planetlight) [1] by individual small water droplets and sometimes tiny ice crystals of a cloud or on a foggy glass surface.