Daylight Intensity in Different Conditions
Illuminance | Example |
---|---|
120,000 lux | Brightest sunlight |
110,000 lux | Bright sunlight |
20,000 lux | Shade illuminated by entire clear blue sky, midday |
10,000 - 25,000 lux | Typical overcast day, midday |
<200 lux | Extreme of darkest storm clouds, midday |
400 lux | Sunrise or sunset on a clear day (ambient illumination). |
40 lux | Fully overcast, sunset/sunrise |
<1 lux | Extreme of darkest storm clouds, sunset/rise |
For comparison, nighttime illuminance levels are:
Illuminance | Example |
---|---|
<1 lux | Moonlight |
0.25 lux | Full Moon on a clear night |
0.01 lux | Quarter Moon |
0.002 lux | Starlight clear moonless night sky including airglow |
0.0002 lux | Starlight clear moonless night sky excluding airglow |
0.00014 lux | Venus at brightest |
0.0001 lux | Starlight overcast moonless night sky |
For a table of approximate daylight intensity in the Solar System, see sunlight.
Read more about this topic: Daylight
Famous quotes containing the words daylight, intensity and/or conditions:
“This, our respectable daily life, on which the man of common sense, the Englishman of the world, stands so squarely, and on which our institutions are founded, is in fact the veriest illusion, and will vanish like the baseless fabric of a vision; but that faint glimmer of reality which sometimes illuminates the darkness of daylight for all men, reveals something more solid and enduring than adamant, which is in fact the cornerstone of the world.”
—Henry David Thoreau (18171862)
“Murder is born of love, and love attains the greatest intensity in murder.”
—Octave Mirbeau (18501917)
“Purity is not imposed upon us as though it were a kind of punishment, it is one of those mysterious but obvious conditions of that supernatural knowledge of ourselves in the Divine, which we speak of as faith. Impurity does not destroy this knowledge, it slays our need for it.”
—Georges Bernanos (18881948)