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Terran circumference: Difference between revisions
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Binary fractions of | [[image:WGS84 mean Earth radius.svg|thumb|[Image.]  Mean [[wikipedia:circumference|circumference]] (<var style="text-decoration: overline;">C</var>) is equal to twice the mean [[wikipedia:radius|radius]] (2<var style="text-decoration: overline;">r</var>) times the [[wikipedia:Archimedean constant|Archimedean constant]] (<var>π</var>): <var style="text-decoration: overline;">C</var> = 2<var>π</var><var style="text-decoration: overline;">r</var>.  The Terran mean radius (<var style="text-decoration: overline;">r</var><sub>🜨</sub>) is equal to one third of the sum of the equatorial radius (<var>r</var><sub>e</sub>) and twice the polar radius (2<var>r</var><sub>p</sub>): <var style="text-decoration: overline;">r</var><sub>🜨</sub> = (2<var>r</var><sub>p</sub> + <var>r</var><sub>e</sub>)/3]] | ||
Binary fractions of the Terran <u>[[mean radii|mean circumference]]</u> (<var style="text-decoration: overline;">C</var><sub>🜨</sub>/2<sup><var>n</var></sup>). <ref><u><code>[[radii#list]]</code></u></ref>  Values have a relative uncertainty of ±1.5696102362696618011051437320346 × 10<sup>−8</sup>. | |||
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