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

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 2 Search : arcsecond
sub-arcsecond
  زیر-ثانیه‌ای   
zir-sâniye-yi

Fr.:   

A measure of angle smaller than 1 arcsecond, usually until 0.1 arcsecond.

sub-; → arc second.

sub-arcsecond imaging
  تصویرگری ِ زیر-ثانیه‌ای   
tasvir-gari-ye zir-sâniye-yi

Fr.:   

Imaging in excellent seeing conditions using an adequate detector to obtain stellar images whose profile lies in the sub-arcsecond range.

sub-arcsecond; → imaging.