Dusk
Dusk is the darkest stage of twilight in the evening. During early to intermediate stages of twilight, there may be enough light in the sky under clear-sky conditions to read outdoors without artificial illumination. Civil dusk occurs when the earth rotates to a point at which the center of the sun is at 6° below the local horizon. This marks the end of the evening civil twilight, the point where artificial illumination is required to read outside. Twilight comes after sunset, which is the point at which the earth has rotated just enough that the sun is no longer visible on the local horizon (under clear conditions).
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Famous quotes containing the word dusk:
“The dusk runs down the lane driven like hail;
Far off a precise whistle is escheat
To the dark; and then the towering weak and pale....”
—Allen Tate (1899–1979)
“All praise of the hawk on fire in hawk-eyed dusk be sung,
When his viperish fuse hangs looped with flames under the brand
Wing, and blest shall
Young
Green chickens of the bay and bushes cluck, “dilly dilly,
Come let us die.””
—Dylan Thomas (1914–1953)
“Mantled in grey, the dusk steals slowly in,
Crossing the dead, dull fields with footsteps cold.”
—Philip Larkin (1922–1986)