An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

   Homepage   
   


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

Number of Results: 2 Search : galactic rotation
galactic rotation
  چرخش ِ کهکشان   
carxeš-e kahkešân

Fr.: rotation galactique   

The revolving of the gaseous and stellar content of a galaxy around its central nucleus. The rotation is not uniform, but differential. One revolution of the Sun within our own Galaxy takes about 220 million years, or one cosmic year.

galactic; → rotation.

galactic rotation problem
  پراسه‌ی ِ چرخش ِ کهکشانی   
parâse-ye carxeš-e kahkešâni

Fr.: problème de la rotation galactique   

The discrepancy between observed galaxy → rotation curves and the theoretical prediction, assuming a centrally dominated mass associated with the observed luminous material.

galactic; → rotation; → problem.