An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک



antisolar point
  نقطه‌ی ِ پادخورشیدی  
noqte-ye pâdxoršidi
Fr.: direction antisolaire  

Meteo.: The point on the → celestial sphere that lies directly opposite the Sun from the → observer, observer, that is, on the line from the Sun through the observer.

The antisolar point is the center of the rainbow, and can be easily found on a sunny day: it it located at the shadow of one’s head; it is 180° away from the Sun.

If the Sun is in the sky, the antisolar point is below the horizon. If the Sun has set, the antisolar point is above the horizon.

See also:anti-; → solar; → point.