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1837, William Whewell, “The Inductive Epoch of Newton—Discovery of the Universal Gravitation of Matter, according to the Law of the Inverse Square of the Distance”, in History of the Inductive Sciences, from the Earliest to the Present Times. In Three Volumes.">…], volume II, London: John W Parker,; Cambridge, Cambridgeshire: J. and J. J. Deighton, →OCLC, book VII (History of Physical Astronomy), page 170:
t follows from the theory of gravity, that the aphelia of Mercury, Venus, the Earth, and Mars, slightly progress.
, Oxford: Oxford University Press, December 2021; “aphelion, n.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
