An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

Homepage  Preliminaries  Abbreviations  Acknowledgments  References 
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
corona
  تاج، هورتاج  
tâj, hurtâj (#)
Fr.: couronne  

  1. The outermost atmosphere of the Sun immediately above the → chromosphere, which can be seen during a total Solar eclipse. It consists of hot (1-2 × 106 K), extremely tenuous gas (about 10-16 g cm-3) extending for millions of kilometer from the Sun’s surface.

  2. Meteorology: A set of one or more colored rings of small radii, concentrically surrounding the disk of the Sun, Moon, or other luminary when veiled by a thin cloud.

Etymology (EN): L. corona “crown, garland,” cf. Gk. korone “anything curved, kind of crown.”

Etymology (PE): Tâj “crown,” loanword in Arm. tag “crown,” tagavor “king,” Proto-Iranian tâgâ-, maybe from PIE base (s)teg- “to cover” (L. toga “a garment worn by male citizens in ancient Rome;” hurtâj, from hur, → sun, + tâj.