Dictionary Meaning Of Aberration

By 02:01 Sun, 21 Jan 2018 Comments


A small periodical change of position in the stars and

other heavenly bodies, due to the combined effect of the motion of

light and the motion of the observer; called annual aberration, when

the observer's motion is that of the earth in its orbit, and daily or

diurnal aberration, when of the earth on its axis; amounting when

greatest, in the former case, to 20.4'', and in the latter, to 0.3''.

Planetary aberration is that due to the motion of light and the motion

of the planet relative to the earth.


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