An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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antapex
  پادچکاد  
pâdcakâd
Fr.: antiapex  

The direction in the sky (in → Columba) away from which the Sun seems to be moving (at a speed of 19.4 km/s) relative to general field stars in the Galaxy.

Etymology (EN): Antapex from L. ant-, → anti- “against, opposite,” + L. → apex “summit, peak, tip.”

Etymology (PE): Pâdcakâd from pâd-, → anti- + cakâd “summit of a mountain; top, crown of the head, top of the forehead,” from Mid.Pers. cakât “summit,” → apex.