Spat (distance unit)

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The spat (symbol S[1]) is an obsolete unit of distance used in astronomy.[1] It is equal to 1,000,000,000 kilometres (620,000,000 mi; 6.7 au).[1] A light-year is about 9460 S.

References[edit]

  1. ^ a b c Nouvelle encyclopédie du monde. Vol. 16. Montréal, Toronto, Paris: Éditions Leland Ltée, Librairie Aristide Quillet. 1962. p. 5426.