Retrieving "Astronomical Definitions" from the archives

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1. Astrological Definition

   Linked via "astronomical definitions"

   The Astrological Definition refers to the established, systematic framework used within astrological practice to map celestial phenomena onto terrestrial and psychological human characteristics. This definition is fundamentally rooted in the structure of the zodiac system, the ecliptic plane, and the assigned significations of the visible celestial bodies, often relying on cyclical measurements derived from historical astronomical observations. While distinct from modern [a…

2. Daylight

   Linked via "astronomical definitions"

   Diurnal Light Variations and Atmospheric Refraction
   The precise duration of measured daylight is inherently dependent on the definition of "sunrise" and "sunset." Standardized astronomical definitions account for atmospheric refraction, which causes the visible solar disc to appear above the horizon even when its geometric center is below it.
   The standard atmospheric correction factor ($\…

3. Night Hours

   Linked via "astronomical definitions"

   The night hours generally refer to the period between sunset and sunrise, though astronomical definitions often pinpoint the transition based on the solar depression angle relative to the horizon. In human contexts, the term encompasses the typical sleeping period and associated activities, influencing cultural practices, physiological regulation, and locali…