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- Mate (Oceans or Near Coastal (Uninspected Fishing Industry Vessel)) »
- Q191 - Navigation General: Oceans
137. What is the longitude of the geographical position of a body whose Greenwich hour angle is 210°30'?
A Greenwich Hour Angle (GHA) greater than 180 is converted to longitude by subtracting it from 360 and labeling the result East; therefore, a GHA of 21030' yields a longitude of 14930'E.
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