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v. t. e. The planetary hours are an ancient system in which one of the seven classical planets is given rulership over each day and various parts of the day. Developed in Hellenistic astrology, it has possible roots in older Babylonian astrology, and it is the origin of the names of the days of the week as used in English and numerous other ...
As sunrise and sunset occur sixteen times each a day in low-Earth orbit, Muslim astronauts in space schedule religious practices around the time zone of the last place on Earth they were on. For example, this means an astronaut from Malaysia launching from the Kennedy Space Center in Florida would center their fast according to sunrise and ...
Sunrise equation. A contour plot of the hours of daylight as a function of latitude and day of the year, using the most accurate models described in this article. It can be seen that the area of constant day and constant night reach up to the polar circles (here labeled "Anta. c." and "Arct. c."), which is a consequence of the earth's inclination.
In photography, the golden hour is the period of daytime shortly after sunrise or before sunset, during which daylight is redder and softer than when the sun is higher in the sky . 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 ...
The short prayer can only be said between noon and sunset, while the medium prayer must be said three times during the day: once between sunrise and noon, once between noon and sunset, and once in the two hours following sunset. [51] The long prayer is not bound by a fixed prayer time. The text of these prayers is taken from the writings of the ...
Twilight. Twilight is the time period between dawn and sunrise, or between sunset and dusk. Morning twilight: astronomical, nautical, and civil stages at dawn. The apparent disk of the Sun is shown to scale. [1] Evening twilight: civil, nautical, and astronomical stages at dusk. The solar disk is shown to scale.
Daytime. Daytime as observed on Earth is the period of the day during which a given location experiences natural illumination from direct sunlight. Daytime occurs when the Sun appears above the local horizon, that is, anywhere on the globe's hemisphere facing the Sun. In direct sunlight the movement of the sun can be recorded and observed using ...
Summer solstice. The summer solstice or estival solstice [i] occurs when one of Earth 's poles has its maximum tilt toward the Sun. It happens twice yearly, once in each hemisphere ( Northern and Southern ). For that hemisphere, the summer solstice is the day with the longest period of daylight and shortest night of the year, when the Sun is at ...