Diurnal
Encyclopedia
Diurnal may refer to:
In astrology:
- Diurnal cycleDiurnal cycleA diurnal cycle is any pattern that recurs every 24 hours as a result of one full rotation of the Earth.In climatology, the diurnal cycle is one of the most basic forms of climate patterns. The most familiar such pattern is the diurnal temperature variation...
, any pattern that recurs daily- Diurnality, the behavior of animals and plants that are active in the daytime
- Diurnal motionDiurnal motionDiurnal motion is an astronomical term referring to the apparent daily motion of stars around the Earth, or more precisely around the two celestial poles. It is caused by the Earth's rotation on its axis, so every star apparently moves on a circle, that is called the diurnal circle. The time for...
, the apparent motion of stars around the Earth - Diurnal phase shiftDiurnal phase shiftIn telecommunication, diurnal phase shift is the phase shift of electromagnetic signals associated with daily changes in the ionosphere. The major changes usually occur during the period of time when sunrise or sunset is present at critical points along the path. Significant phase shifts may occur...
, a phase shift of electromagnetic signals - Diurnal temperature variationDiurnal temperature variationDiurnal temperature variation is a meteorological term that relates to the variation in temperature that occurs from the highs of the day to the cool of nights.-Temperature lag:Temperature lag is an important factor in diurnal temperature variation...
, a cycle of daily temperature change
In astrology:
- Diurnal chart, a chart for a given date, based on the natal chartNatal chartIn astrology, a natal chart is a stylized map of the universe with the "native" at the center. It is calculated for the exact time and location of the native's birth for the purposes of gaining insight into the native's personality and potential...
- Diurnal planet, a planet in a sectAstrology of sectSect is an ancient astrological concept in which the seven traditional "planets" are assigned to two different categories: diurnal or nocturnal sect....
for which the Sun is above the horizon - Diurnal signDiurnal signIn astrology, a diurnal sign is a sign in the zodiac whose natural positions are on the southern hemisphere of the horoscope. The diurnal signs are therefore:-* Libra* Scorpio* Sagittarius* Capricorn* Aquarius* Pisces...
, a sign in the zodiac - Diurnal arcDiurnal arcIn astrology, a diurnal arc is the time, as expressed in right ascension, it takes a planet, point, or degree to move from its rising point to its setting point. This takes place in many celestial bodies such as the sun and moon....
, time expressed as right ascension