单词 | diurnal aberration |
释义 | diurnal aberration [dī`ǝrn·ǝl ´ab·ǝ`rā·shǝn] ASTRONOMY Aberration caused by the rotation of the earth; its value varies with the latitude of the observer and ranges from zero at the poles to 0.31 second of arc. Also known as daily aberration. |
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