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The Maritime Approximation
"At ¾ km (within ⅐%), a nautical mile on Titan falls midpoint between that of the Moon and Mars. Of course, Titan’s seas and lakes are of liquid methane and ethane rather than water, and a human landing is exceedingly (and disappointingly) unlikely within my lifetime. But who knows, perhaps one day explorers will navigate Titan using a new nautical mile across new seas."
https://kevlinhenney.medium.com/the-maritime-approximation-8b71d5041cd5
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