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Dawn begins with the first sight of lightness in the morning, and continues until the Sun breaks the horizon. The morning twilight is divided in three phases, which are determined by the angular distance of the centre of the Sun (degrees below the horizon) in the morning.
Civil dawn is preceded by morning nautical twilight and civil dusk is followed by evening nautical twilight. Civil twilight in a small town in the Mojave Desert. Under clear weather conditions, civil twilight approximates the limit at which solar illumination suffices for the human eye to clearly distinguish terrestrial objects.
Morning on a farm in Namibia, just after sunrise. Morning is the period from sunrise to noon.It is preceded by the twilight period of dawn.There are no exact times for when morning begins (also true of evening and night) because it can vary according to one's lifestyle, latitude, and the hours of daylight at each time of year. [1]
The distinction is not absolute, because crepuscular animals may also be active on a bright moonlit night or on a dull day. Some animals casually described as nocturnal are in fact crepuscular. [2] Special classes of crepuscular behaviour include matutinal, or "matinal", animals active only in the dawn, and vespertine, only in the dusk.
It is based on the reddish glow of the morning or evening sky, caused by trapped particles scattering the blue light from the sun in a stable air mass. [5] If the morning skies are of an orange-red glow, it signifies a high-pressure air mass with stable air trapping particles, like dust, which scatters the sun's blue light.
Twilight, the period in the morning during which the sky is brightening, but the Sun is not yet visible. The beginning of morning twilight is called astronomical dawn. The period after the Sun rises during which striking colors and atmospheric effects are still seen. [5] Civil twilight being the brightest, while astronomical twilight being the ...
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In ancient Greek mythology and religion, Eos (/ ˈ iː ɒ s /; Ionic and Homeric Greek Ἠώς Ēṓs, Attic Ἕως Héōs, "dawn", pronounced [ɛːɔ̌ːs] or ; Aeolic Αὔως Aúōs, Doric Ἀώς Āṓs) [1] is the goddess and personification of the dawn, who rose each morning from her home at the edge of the river Oceanus to deliver ...