culmination

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Culmination of a circumpolar starclick for a larger image
Culmination of a circumpolar star

culmination

(kul-mă-nay -shŏn) (meridian passage) The passage of a celestial body across an observer's meridian. As a result of the Earth's rotation this occurs twice daily although both culminations can be observed only for circumpolar stars. Upper culmination (or transit) is the crossing closer to the observer's zenith; for circumpolar stars and the Moon this is also called culmination above pole. Lower culmination (or culmination below pole for circumpolar stars and the Moon) is the crossing farther from the zenith (see illustration).

Culmination

(religion, spiritualism, and occult)

Culmination usually refers to the arrival of a celestial body at the midheaven, the highest point in a chart. It may also refer to the arrival of a celestial body at a point where an aspect becomes exact.

Culmination

 

the passage of a celestial body, in its apparent diurnal motion, across the celestial meridian. In the earth’s northern hemisphere, at upper culmination the celestial body passes between the north celestial pole and the south point and is at maximum altitude (above the horizon). At lower culmination the celestial body crosses the meridian to the north of the celestial pole and is at minimum altitude. Both culminations can be observed for those stars whose entire diurnal path across the sky is visible (from a given place); such stars are called nonsetting. In the opposite case, lower culmination occurs below the horizon and the stars are called setting.

culmination

[kəl·mə′nā·shən]
(astronomy)
The position of a heavenly body when at highest apparent altitude.
For a heavenly body which is continually above the horizon, the position of lowest apparent altitude.
(geology)
A high point on the axis of a fold.