Celestial Navigation 360 - Accurate Positioning Tool
"Celestial Navigation 360" is an offline Android app that enables users to determine their geographical position using celestial navigation techniques. It features real-time panoramic horizons for star and planet identification, sight reduction for 58 navigational stars, and the ability to plot lines of position based on sextant sightings. With an included rising/setting almanac and easy-to-navigate grid, it's perfect for both novice and experienced navigators seeking to enhance their celestial navigation skills.
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Celestial navigation exploits the principle that every measurement taken with a sextant (a 'sight') converts to a line of position on a chart, the intersections of two or more such lines providing a position fix.
Use this offline compatible app to plan/enter sights and inspect the resulting lines of position.
Features
* Realtime computed horizon in panoramic projection. Use for star/planet identification, sight preparation, true bearings etc.
* Sight reduction (ephemerides calculated internally) for the 58 almanac-listed navigational stars. Extendable to the sun, moon and planets as an upgrade
* Lines of position (intercept method) plotted on a pan/zoom grid centered on Assumed Position
* Rising/setting almanac
User reviews
Very useful app. A minor improvement for the next release would be to retain the date and time settings between entries - this would make it easier to obtain the results for a series of five or six star shots, all of which would typically have been taken within a few minutes of each other.
A Google user, 2019-11-18
