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1 September 2015 Measurement of the speed of light from extraterrestrial sources
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Abstract
The conventional measurements of the speed of light were performed before the early twentieth century. Only few used extraterrestrial sources and got the result with large uncertainty. We design a transmitter to modulate the rays from the local infrared light source and the extraterrestrial sources simultaneously into pulses. Both are received by a distant receiver. We have the white light travelling exactly along the path of the starlight pulses for calibration. It is found that the travel times of Aldebaran and Capella pulses are longer than that of Vega pulses. The results indicate that the speeds of starlights are different.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jingshown Wu, Yen-Ru Huang, Hen-Wai Tsao, San-Liang Lee, Shenq-Tsong Chang, Ho-Lin Tsay, and Hong-Tsu Young "Measurement of the speed of light from extraterrestrial sources", Proc. SPIE 9608, Infrared Remote Sensing and Instrumentation XXIII, 96080E (1 September 2015); https://doi.org/10.1117/12.2186922
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