An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian
فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک
M. Heydari-Malayeri - Paris Observatory
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secular aberration birâheš-e diryâz Fr.: aberration séculaire The smallest component of the aberration of starlight which is caused by the motion of the solar system through space. → annual aberration; → diurnal aberration. → secular; → aberration. |
spherical aberration birâheš-e koreyi Fr.: aberration sphérique, ~ de sphéricité An aberration of a spherical lens or spherical mirror in which light rays converge not to a single point but to a series of points with different distances from the lens or mirror. Spherical aberration is corrected by using parabolic reflecting and refracting surface. → spherical; → aberration. |
stellar aberration birâheš-e setâre-yi Fr.: aberration stellaire Same as → aberration of starlight . |
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