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:
“Between the daylight gambler and the player at night there is the same difference that lies between a careless husband and the lover swooning under his lady’s window.”
—Honoré De Balzac (1799–1850)
“Consider the difference between looking and staring. A look is voluntary; it is also mobile, rising and falling in intensity as its foci of interest are taken up and then exhausted. A stare has, essentially, the character of a compulsion; it is steady, unmodulated, “fixed.””
—Susan Sontag (b. 1933)
“I can’t say that the college-bred woman is the most contented woman. The broader her mind the more she understands the unequal conditions between men and women, the more she chafes under a government that tolerates it.”
—Susan B. Anthony (1820–1906)