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iMariner Celestial Navigation

iMariner Celestial Navigation is a complete toolbox : sight, fix, meridian, starfinder, solar compass

iMariner Celestial Navigation is a complete toolbox : sight, fix, meridian, starfinder, solar compass

iMariner Celestial Navigation

by DFR Editions
iMariner Celestial Navigation
iMariner Celestial Navigation
iMariner Celestial Navigation

What is it about?

iMariner Celestial Navigation is a complete toolbox : sight, fix, meridian, starfinder, solar compass

iMariner Celestial Navigation

App Details

Version
3.4
Rating
NA
Size
36Mb
Genre
Navigation Utilities
Last updated
May 24, 2017
Release date
March 20, 2012
More info

App Screenshots

iMariner Celestial Navigation screenshot-0
iMariner Celestial Navigation screenshot-1
iMariner Celestial Navigation screenshot-2
iMariner Celestial Navigation screenshot-3

App Store Description

iMariner Celestial Navigation is a complete toolbox : sight, fix, meridian, starfinder, solar compass
Also embedded : nautical almanac (sun, moon, planets, starts) and astronomical computation (no more need for HO-249/HO-229 tables)

v2.3 : Update the value of DeltaT (67.4s) for 2013 from maia.usno.navy.mil

- 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 Catalog

Extraction 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, France
vizier.u-strasbg.fr
=============================
Le catalogue des etoiles les plus brillantes Catalogue of the brightest stars
Ochsenbein F., Halbwachs J.L. =1987BICDS..32...83O
Ochsenbein F., Acker A., Legrand E., Poncelet J.M., Thuet-Fleck E.
=============================

AlgorithmsFrom the reference book Astronomical Algorithms by Jean Meeus

Planets : 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 Longitudes
77, Avenue Denfert-Rochereau F75014, Paris, France

Moon : ELP2000 theory

The lunar ephemeris ELP2000 M. Chapront-Touze and J. Chapront
Service de Mecanique Celeste du Bureau des Longitudes
77, Avenue Denfert-Rochereau F75014, Paris, France


Sky Maps

Free maps from the IAU site : http://www.iau.org/public/constellations/

DeltaT value
maia.usno.navy.mil