| Ephemerides and Sight Reduction (details) |
Prime ENG 1,389 KB / 2383 KB |
 Turns your calculator into a reliable, low-cost celestial navigation computer that can live in a chart table and requires no updates until 2200. Provides astronomical calculations of the ephemerides of the usual celestial navigation bodies (Sun, Moon, Mars, Venus, Jupiter, Saturn, and 58 stars), observation planning by listing the azimuth and elevation of all the visible bodies that meet minimum elevation and azimuth restrictions at a given location at a specified future date and time, sight reduction of sextant observations of any of those celestial bodies to Lines of Position (LOPs), plotting of LOPs on a Cartesian plot from which a fix can easily be deduced, determination of the index correction of a sextant from two simple observations of the Sun, and support for running fixes by translating lines of position by a certain distance on a given bearing. |
| By Charles. |
2025-12-30 | |