Abstract
AbstractAfter the creation by King Louis XIV (the ‘Sun King’) of the Royal Academy of Sciences (1666) and of the Paris Observatory (1667), astronomers had quadrants equipped with micrometers which they could use to obtain positions and diameters of celestial objects. They also could observe the physical aspects of these objects with long-focus refractors. One of their favourite targets was the Sun, and they were particularly interested in its position, as well as its diameter, sunspots and eclipses. Richard Stephenson has successfully employed old solar eclipses records, mainly from Chinese chronicles, to study long-term variations in the rotation rate of the Earth.KeywordsSolar EclipseSolar ObservationTotal Solar EclipseCelestial ObjectLunar EclipseThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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