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In astronomy, stellar aberration refers to the apparent visual displacement of celestial objects due to the variation in the observer's motion velocity relative to their true positions. This phenomenon is primarily caused by the periodic changes in the Earth's orbital velocity, resulting in the observer perceiving periodic variations in the positions of stars throughout the year. To investigate this phenomenon further, it is necessary to study whether there are changes in the propagation path of light as it enters the Earth from space and identify the factors that influence the path of light. By doing so, we can uncover the underlying physical mechanisms behind stellar aberration. This research not only contributes to a deeper understanding of stellar aberration but also provides crucial foundations for accurately measuring celestial positions and interpreting experimental observational data.
Tony Yuan (Thu,) studied this question.