Spat (distance unit)
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
- ^ a b c Nouvelle encyclopédie du monde. Vol. 16. Montréal, Toronto, Paris: Éditions Leland Ltée, Librairie Aristide Quillet. 1962. p. 5426.
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