Each measurement taken with a sextant (a 'sight') converts to a line of position (LoP) on a chart the intersections of two or more such lines providing a position fix.

Use this app to plan/enter sights and graphically inspect the resulting LoPs

Features -

* Realtime computed horizon in panoramic projection. Use for star/planet identification sight preparation true bearings etc.

* Sight reduction for the 58 navigational stars of the Nautical Almanac ephemerides calculated internally.

* Graphical plot of LoPs about Assumed Position (intercept method) with fix error ellipse

* Import sights from camera-based companion app Sextant Frame

* Rising/setting/transits almanac

* Lunar distances conversion to Universal Time

Premium Subscription -

All functionality extended to the sun moon planets