The outlines of the constellations is the best available including ones like Sextans which rarely look like a sextant. The AltAz screen can be used to plan sights or to list bodies around a point on the celestial sphere either by altitude/ azimuth or by Declination and Hour Angle. It will even print conventional Nautical Almanac pages for the full range of dates 9999BC to 9999AD. a Star Chart, twilight information, Moon phases and Eclipses. The other data available is comprehensive e.g. Once an altitude and bearing has been entered, a list of potential bodies will be offered so that ambiguous sights will be immediately apparent. Multiple sights can be plotted/ combined while allowing for changes in course and/ or speed. Using the same standards of accuracy as published tables but with a catalogue extending beyond Barnard's Star it can be used as a sight calculator, a definative astronomical reference or simply to print daily Nautical Almanac pages.
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