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Measurement / Celestial coordinate system / Sun / Plasma physics / Sunspot / Prime Meridian / Equator / Ecliptic / Longitude / Cartography / Geodesy / Navigation
Date: 2012-09-05 17:40:06
Measurement
Celestial coordinate system
Sun
Plasma physics
Sunspot
Prime Meridian
Equator
Ecliptic
Longitude
Cartography
Geodesy
Navigation

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Source URL: www.ngdc.noaa.gov

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