By default, the time is set to local time rather than GMT/UTC. By default, the stars are sorted by e "Options" -> "Settings" -> "Sort stars alphabetically" to sort by name rather than number.Ģ. This allows each set of sights to be viewed separately without having to delete the previous set of sights.Ī "Starfinder" uses the device's GPS and orientation to show each celestial body.ġ. The calculated line of position can be saved to the "Records" and placed on the provided map via a single click.Īll calculated lines of position stored in the "Records" tab can be displayed or hidden from the map. * intercept distance and direction (towards/away)ĭetails of the calculation from sextant altitude to observed altitude are shown.ĭetails of calculation from assumed position longitude to LHA of body are shown. * calculated altitude of the celestial body body (Hc) Traditional celestial navigation requires measuring the angle of a star or planet in the sky. * actual altitude of the celestial body (Ho) * altitude of the celestial body read from sextant entered by user (Hs) * celestial body selected by user from a list of sun, moon, planets and stars * date and time entered by user or taken from device's GPS chip Celestial navigation, also known as astronavigation, is the practice of position fixing using stars and other celestial bodies that enables a navigator to accurately determine their actual current physical position in space (or on the surface of the Earth) without having to rely solely on estimated positional calculations, commonly known as 'dead reckoning', made in the absence of satellite navigation or other similar modern electronic or digital positioning means. * assumed position entered by user or taken from device's GPS chip The best app that I’ve seen for celestial navigation. There is no clutter of unnecessary “features”. This app has everything that one needs to resolve several sights into a fix. If you plan to use celestial navigation often, invest in a quality instrument. Some pilots polishing their instrument skills in preparation for their FAA Instrument and Air Transport Pilot examinations use FS X as a training adjunct.
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