Navigational Algorithms Apps

Celestial navigation - Astronavigation Sight reduction: - MarcqSaint Hilaire Line of Position, intercept method (p=Ho-Hc, Zn) -Input for observed altitude Ho or instrumental Hs (Nautical Almanacdata needed for the Sun and the Moon) - Calculator: altitude Hc andazimuth Zn - Running fix - Plots up to 3 Marcq Saint Hilaire Linesof Position on Google maps - Local hour angle (LHA) Sight reductionis the process of deriving from a sight the information needed forestablishing a line of position. This app is a calculator to getthe intercept from the assumed position of the observerAP(latitude, longitude), the geographical position of the celestialbody observed, GP(Dec, GHA), and its corrected altitude Ho. Manualand examples in the developer's website. Ref:https://en.wikipedia.org/wiki/Sight_reduction User interface: -Zoom buttons +/- - Map types: standard, terrain, and satellite -GPS location. ("Location" App permission must be allowed. Switch onyou GPS, and then automatic location detection is possible)

For training or improving your skills with a sextant.

Great Circle and Rhumb line routes

Nautical astronomy (Celestial navigation, Astronavigation):-Latitude by Polaris - Latitude by Noon sight - Latitude bySunex-merian sight - Latitude by the Sun´s Altitude and Time -Timesight for the Sun Take the sextant and shoot the Sun or theNorthStar. Practice with it using the old methods ofastronomicalnavigation, and let this app do the calculations foryou! HELP 1 -Tap on Date, Time, DR, Hs and sight parameters toenter the data. 2- Choose the calculation in the combobox. 3 - Push[Calculate] andthe solution is written. [+]: resets the form fornew data.[Examples] - Loads the data of the chosen example. - SeeAbout.[Location] Sets the position for training purposes. -Threemethods: using Google Maps, GNSS fix, by input dialog box.-Location App permission must be allowed. - Switch on your GPS,andthen automatic location detection is possible. - My Locationbuttonis available on Google Maps. Your last position isautomaticallysaved - Storage App permission must be allowed Manualand examplesat the developer's website.

Fix by two circles of position: vector solution. Celestialnavigation.

The Nautical Almanac in your smartphone or tablet

Variation for the current day. Used in navigation with a magneticcompass.