Dawn refers to the twilight before sunrise. Twilight is the time before Sunrise, called Dawn, and the time after Sunset, called Dusk. Sunrise is the instant at which the upper edge of the Sun appears above the Horizon in the East. It is recognized by the presence of weak sunlight, while the sun itself is still below the horizon. 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. ^[1]

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. ^[1]

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 is 6 degrees below the horizon in the morning. The Sun (Sol is the Star at the center of the Solar System. This article describes the unit of angle For other meanings see Degree. The horizon ( Ancient Greek ὁ ὁρίζων, /ho horídzôn/ from ὁρίζειν, "to limit" is the apparent line that separates ^[1]

Dawn should not be confused with sunrise, which is the moment when the leading edge of the sun itself appears above the horizon. Sunrise is the instant at which the upper edge of the Sun appears above the Horizon in the East.

Contents 1 Dawn changes with location 2 Folklore 3 References 4 See also

Dawn changes with location

The length of time that dawn lasts varies greatly with the observer's latitude. In equatorial regions, dawn may last only a few minutes; in polar regions, dawn can last hours. The Tropics are centered on the Equator and limited in Latitude by the Tropic of Cancer in the northern hemisphere at approximately 23°26' (23 Earth's polar regions are the areas of the globe surrounding the poles also known as frigid zones.

Folklore

In folklore, belief that dawn banishes evil spirits, ghosts, vampires, trolls, faeries and demons is common, for various reasons, throughout Eastern and Western cultures. History The concept of folklore developed as part of the 19th century ideology of Romantic nationalism, leading to the reshaping of oral traditions to serve modern ideological A ghost is said to be the apparition of a Deceased person frequently similar in appearance to that person and usually encountered in places she or he frequented Vampires are mythological or folkloric revenants who subsist by feeding on the blood of the living A troll is a fearsome member of a race of creatures from Norse mythology. A fairy (also fay, fey, fae, faerie; collectively wee folk, good folk, people of peace, fair

References

See also

• Daybreak
• Sunrise
• Morning
• Sunset
• Dusk
• Twilight

Sunrise is the instant at which the upper edge of the Sun appears above the Horizon in the East. The word morning originally referred to the Sunrise. Morning precedes midday, Afternoon, and Night in the sequence of a day Sunset, also called sundown in some American English Dialects is the instant when the trailing edge of the Sun 's disk disappears below Dusk refers to the period of time following Sunset. Although commonly confused with twilight dusk is the time frame that occurs either before or after a twilight - when the Twilight is the time before Sunrise, called Dawn, and the time after Sunset, called Dusk.

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