Dawn

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Dawn

Dawn is the twilight

Twilight

Twilight is the time between dawn and sunrise, and the time between sunset and dusk. Sunlight Scattering in the upper Earth's atmosphere illuminates the lower atmosphere, and the surface of the Earth is not completely lit or completely dark....
before sunrise

Sunrise

Sunrise is the instant at which the upper edge of the Sun appears above the horizon in the east. Sunrise should not be confused with dawn, which is the point at which the sky begins to lighten, some time before the sun itself appears, ending twilight....
, which is the moment when the leading edge of the sun itself appears above the horizon.

e are also more technical definitions of dawn, including the following:

Astronomical dawn : the moment after which the sky is no longer completely dark, formally defined as the time at which the sun is 18 degrees below the horizon in the morning.

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Encyclopedia

Dawn is the twilight

Twilight

Sunrise

Types

There are also more technical definitions of dawn, including the following:

Astronomical dawn : the moment after which the sky is no longer completely dark, formally defined as the time at which the sun is 18 degrees below the horizon in the morning.

Nautical dawn: the time at which there is just enough sunlight for the horizon and some objects to be distinguishable, formally defined as the time at which the sun is 12 degrees below the horizon in the morning.

Civil dawn : that time at which there is enough light for objects to be distinguishable and that outdoor activities can commence, formally defined as the time at which the sun

Sun

The Sun , a G V star, is the star at the center of the Solar System. The Earth and other matter orbit the Sun, which by itself accounts for about 98.6% of the Solar System's mass....
is 6 degree

Degree (angle)

A degree , usually denoted by ? , is a measurement of plane angle, representing 1/360 of a Turn ; one degree is equivalent to p/180 radians....
s below the horizon

Horizon

The horizon is the apparent line that separates earth from sky.More precisely, it is the line that divides all of the directions one can possibly look into two categories: those which intersect the Earth's surface, and those which do not....
in the morning.

Duration

The duration of dawn varies greatly with the observer's latitude. In equatorial regions

Tropics

The Tropics, seated in the equatorial regions of the world, are limited in latitude by the Tropic of Cancer in the northern hemisphere at approximately 23?26' N latitude, and the Tropic of Capricorn in the southern hemisphere at 23?26' S latitude....
, dawn may last only a few minutes; in polar region

Polar region

Earth polar regions are the areas of the globe surrounding the geographical pole also known as Geographical zone. The North Pole and South Pole being the centers, these regions are dominated by the polar ice caps, resting respectively on the Arctic Ocean and the continent of Antarctica....
s, dawn can last hours.

Folklore

In folklore

Folklore

Folklore is the body of expressive culture, including tales, music, dance, legends, oral history, proverbs, jokes, superstitions, customs, and so forth within a particular population comprising the traditions of that culture, subculture, or group ....
, belief that dawn banishes evil spirits, zombies, ghosts, vampires, trolls, faeries and demons is common, for various reasons, throughout Eastern and Western cultures.

Dawn

Types

Duration

Folklore

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