Royal Observatory Greenwich
Latitude
DEC
51.476900° N
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DMS
51° 28′ 36.84″ N
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Longitude
DEC
0.000500° E
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DMS
0° 0′ 1.80″ E
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Elevation
23.0
m
* Data Source: Coordinates sourced from manual/landmark_addition; elevation referenced to NASA SRTM/Open-Meteo terrain models.