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EARTH_RADIUS_NM

navcore_math

Constant EARTH_RADIUS_NM 

Source 
pub const EARTH_RADIUS_NM: f64 = _; // 3440.0695464362848f64
Expand description

Mean radius of the earth in nautical miles.

The IUGG mean radius R₁ = 6_371_008.8 m, divided by the nautical mile’s defined 1852 m. See the module docs for why this does not make a degree of latitude exactly 60 NM.