iMariner Celestial Navigation4.5

iMariner Celestial Navigation is a complete toolbox : sight, fix, meridian, starfinder, solar compassAlso embedded : nautical almanac (sun, moon, planets, starts) and astronomical computation (no more need for HO-249/HO-229 tables)- displays almanac informations : Sun, Moon, Venus, Mars, Jupiter, Saturn and 92 brightest stars. At this step, you can use these almanac data with HO.249 tables, if you want to reduce manually.- reduces a sight : getting your observed altitude and the precise time, it calculate Intercept and Azimut. You don't need any calculation ! Simply report Intercept and Azimut to your navigational chart.- You can save your observations by passages and send them by email in CSV format- take a fix : with two sights, iMariner is able to calculate your position (latitude/longitude)- meridian passage : iMariner helps you to take observations mandatory to know your position (latitude/longitude)- sight preparation : iMariner proposes you the best objects, here position (azimut and elevation), and the approximate time of the day the observation can take (nautical_twilight or nautical dawn).iMariner is a standalone application. It doesn't require internet connection. It is light and calculations are optimized to save energy on your boat.Includes a solar compass (and moon compass too).REFERENCES :iMariner has been inspirated by astronomical works of the following people.Brightest Stars CatalogExtraction of 92 stars > = 2.5 Mag from the vizier catalog, completed with some stars and star names.V/53A Catalogue of the Brightest Stars (Ochsenbein+ 1988)This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, Francevizier.u-strasbg.fr=============================Le catalogue des etoiles les plus brillantes Catalogue of the brightest starsOchsenbein F., Halbwachs J.L. =1987BICDS..32...83OOchsenbein F., Acker A., Legrand E., Poncelet J.M., Thuet-Fleck E.=============================AlgorithmsFrom the reference book Astronomical Algorithms by Jean MeeusPlanets : VSOP87D theoryTables extracted from ftp://ftp.imcce.fr/pub/ephem/planets/vsop87/ and adapted to Objective-C.Bretagnon P., Francou G., : 1988, Astron. Astrophys., 202, 309.Pierre Bretagnon, Gerard Francou Bureau des Longitudes77, Avenue Denfert-Rochereau F75014, Paris, FranceMoon : ELP2000 theoryThe lunar ephemeris ELP2000 M. Chapront-Touze and J. ChaprontService de Mecanique Celeste du Bureau des Longitudes77, Avenue Denfert-Rochereau F75014, Paris, FranceSky MapsFree maps from the IAU site : http://www.iau.org/public/constellations/DeltaT valuemaia.usno.navy.mil

More precise stars computation :Simbad Database from http://simbad.u-strasbg.fr/simbad Centre de Données astronomiques de Strasbourg Observatoire de Strasbourg 11, rue de l'Université - 67000 STRASBOURG, FranceNutations from https://hpiers.obspm.fr/eop-pc/models/nutations IERS EOP PC Observatoire de Paris 61, avenue de l'Observatoire 75014 Paris/ FRANCE