Dawn

thumb|Twilight is the period between dawn and [[sunrise, and between sunset and dusk.]] thumb|Morning twilight: astronomical, nautical, and civil stages at dawn. The apparent disk of the Sun is shown to scale. thumb|Evening twilight: civil, nautical, and astronomical stages at dusk. The solar disk is shown to scale.

thumb|right|Late summer dawn over the Mojave Desert, [[California]] thumb|Dawn is sometimes considered the beginning of morning twilight, the period of twilight, or the time of sunrise. 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. This morning twilight period will last until sunrise (when the Sun's upper limb breaks the horizon), when direct sunlight outshines the diffused light.

thumb|The Fallen Angel (painting)|The Fallen Angel (1847) by [[Alexandre Cabanel|250x250px]] Lucifer is believed to be a fallen angel and the Devil in Christian theology. Lucifer is associated with the sin of pride and believed to have attempted an usurpation of God, whereafter being banished to Earth.

first and last hour of sunlight during the day

Godess of dawn Akkadian mythology

Canaanite dawn deity