Assertion: nautical mile | /r/HasProperty | 0.46 km
Facets:
Source sentences:
text: UTC, atomic time at Greenwich, is too inaccurate, differing by as much as 0.9 seconds from UT1, creating an error of ​1⁄ 4 of a minute of longitude at all latitudes and which is 1⁄ 4 nautical mile (0.46 km; 0.29 mi) at the equator but less at higher latitudes, varying roughly by the cosine of the latitude.