Spat (distance unit)

Short description: Obsolete unit of distance in astronomy

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 astronomical unit|au).[1] A light-year is about 9460 S.

## References

1. ↑ 1.0 1.1 1.2 Nouvelle encyclopédie du monde. 16. Montréal, Toronto, Paris: Éditions Leland Ltée, Librairie Aristide Quillet. 1962. p. 5426.

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