Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.
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| Aberration 2 |
An apparent displacement in the observed position of a star. It is a result of the finite speed of the light travelling from the star, combined with the motion through space of the observer on Earth relative to the star, etc. Aberration arising from the Earth’s orbital motion around the Sun is termed annual aberration. The much smaller component that results from the daily rotation of the Earth is called diurnal aberration.
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