Spat (unit)

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The spat (symbol S), from the Latin Spatium ("Space") is an obsolete unit of distance used in astronomy. It is equal to one billion kilometres (1 Tm or 1012 m).

[edit] References

  • Nouvelle encyclopédie du monde, Éditions Leland Ltée. (Librairie Aristide Quillet), Montréal/Toronto/Paris, 1962, vol. 16, p. 5426
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