gravitational constant
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https://doi.org/10.1351/goldbook.G02695
Universal fundamental physical constant in Newton's law of gravitation, G = 6.67259(85) x 10E-11 m3 kg-1 s-2.
Source:
CODATA Bull. 1986,
63
, 1 (https://doi.org/10.6028/jres.092.010)