 Late summer dawn over the Mojave desert Image by Jessie Eastland, via Wikimedia Commons. Licensed CC BY-SA 4.0 |
Dawn Featuring Tony OrlandoDawn Dawn Time that marks the beginning of twilight before sunrise Not to be confused with Sunrise or Morning. For other uses, see Dawn (disambiguation). Dawn is the time that marks the beginning of twilight before sunrise. It is recognized by the appearance of indirect sunlight being scattered in Earth's atmosphere, when the centre of the Sun's disc has reached 18° below the observer's horizon.[1] This morning twilight period will last until sunrise (when the Sun's upper limb breaks the horizon), when direct sunlight outshines the diffused light. Civil, nautical, and astronomical dawn, when defined as the beginning time of the corresponding twilight[2] Late summer dawn over the Mojave Desert, California Dawn is sometimes considered the beginning of morning twilight,… (Source: Wikipedia)
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