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Twilight is the time period between dawn and sunrise, ... The apparent travel of the Sun occurs at the rate of 15 degrees per hour (360° per day), but sunrise and ...
Blue hour at the Old Cathedral of the Holy Name of Jesus, Bragança in Portugal. The blue hour (from French l'heure bleue; [1] [a] pronounced [lœʁ blø]) is the period of twilight (in the morning or evening, around the nautical stage) when the Sun is at a significant depth below the horizon. During this time, the remaining sunlight takes on a ...
The word crepuscular derives from the Latin crepusculum ("twilight"). [3] Its sense accordingly differs from diurnal and nocturnal behavior, which respectively peak during hours of daytime and night. The distinction is not absolute, because crepuscular animals may also be active on a bright moonlit night or on a dull day.
Daytime or day as observed on Earth is the ... this period is often referred to as twilight. ... 24-hour nights with stars visible all the time only happen beyond 72 ...
The golden hour is also sometimes called the magic hour, especially by cinematographers and photographers. [1] [2] During these times, the brightness of the sky matches the brightness of streetlights, signs, car headlights and lit windows. The period of time shortly before the magic hour at sunrise, or after it at sunset, is called the "blue ...
The time of dawn is also referred to as the brahmamuhurta (Brahma is the god of creation and muhurta is a Hindu time of the day), and is considered an ideal time to perform spiritual activities, including meditation and yoga. In some parts of India, both Usha and Pratyusha (dusk) are worshipped along with the Sun during the festival of Chhath.
It uses the day as the base unit, and smaller units being fractions of a day: a metric hour (deci) is 1 ⁄ 10 of a day; a metric minute (milli) is 1 ⁄ 1000 of a day; etc. [16] Similarly, in decimal time, the length of a day is static to normal time. A day is also split into 10 hours, and 10 days comprise a décade – the equivalent of a ...
Civil, nautical, and astronomical twilight. [3] Dusk is the darkest part of evening twilight. The time of dusk is the moment at the very end of astronomical twilight, just before the minimum brightness of the night sky sets in, or may be thought of as the darkest part of evening twilight. [4]