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Columbus, OH
Sunny, 2:25 PM
85- Precipitation: 0%
- Humidity: 42%
- Wind: 3 mph
Air quality is acceptable, but there may be a risk for some people who are unusually sensitive to air pollution.(Air quality powered by Breezometer)
Protection essential.
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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]
DAWN meaning: 1. the period in the day when light from the sun begins to appear in the sky: 2. the start of a…. Learn more.
Dawn News TV is one of the leading News Channels of Pakistan, bringing you the latest News and Current Affairs Programming from Pakistan and around the World.
noun. the first appearance of daylight in the morning: Dawn broke over the valley. Synonyms: sunrise, daybreak. Antonyms: sunset. the beginning or rise of anything; advent: the dawn of civilization.
Astronomical Dawn. When the Sun passes the elevation angle of -18 degrees as it ascends towards the horizon before sunrise, a very small portion of its rays begin to permeate the firmament. The Earth's upper atmosphere begins to scatter and reflect the sunlight, illuminating the lower atmosphere.
Check pronunciation: dawn. Definition of dawn noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
