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excel will use the best formula according to the value of the course (0°-90°) orthodromic distance (gc great circle) formula : cos gc = (sine lat a * sine lat b) + (cos lat a * cos lat b * cos longitude diff.)
- Plotting Sheet for Celestial Navigation
universal plotting sheets for celestial navigation . also...
- The Nautical Almanac
The Nautical Almanac - Sun and stars. by Capt. Roberto Iori....
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The stellar planisphere in an excel file was created for...
- Errors, Tips & Tricks
the nautical sextant in celestial navigation . How to use a...
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RML - Relative Motion Line; SRM - Speed of relative motion;...
- Weather Weblinks
Surface pressure charts: ananalysis & forecast charts by Met...
- Plotting Sheet for Celestial Navigation
Short distance sailing is a term which is applied to sailing along a rhumb-line for distances less than 600 nautical miles. From the formulas derived above, the following are used extensively in short distance sailing:
Celestial navigation course for beginners. Voyage planning/passage planning tool. Single rhumb line and great circle calculations on an ellipsoid.
Rhumb line calculation: Departure position (latitude, longitude) + Course and Distance, to compute Arrival position; Departure position + Arrival position, to compute Course and Distance; Path of constant course between Departure position and Arrival position. Great Circle calculation
Calculation of a distance on loxodrome (rhumb line) and course angle (azimuth) between two points with a given geographical coordinates.
In broad terms, there are two main types of sailing, namely, the Rhumb Line sailing and the Great Circle sailing. The Mercator Sailing is the most accurate method employed in marine navigation to handle calculations related to Rhumb Line sailing.
In navigation, a rhumb line, rhumb (/ r ʌ m /), or loxodrome is an arc crossing all meridians of longitude at the same angle, that is, a path with constant bearing as measured relative to true north.