NaviStar is an app for professional and academic use in the maritime field. It’s main functionality is to perform astronomical repositioning through the determinants calculation and solving the altitude lines crossing.
We think that NaviStar will be a very useful tool for seafarers. Note that in case of “Black Out” or GPS offline, celestial Navigation would be their only possibility to safely proceed to port. NaviStar App would help seafarers providing the calculation of its truth position and reducing the time to do so. Also, the print option of NaviStar results would provide evidence of their observations to authority surveyors.
Available Calculations Algorithms:
-Simultaneous Observation (*Graphical Representation Included)
-Quasi Simultaneous Observation (*Graphical Representation Included)
-Non Simultaneous Observation (*Graphical Representation Included)
-Latitude Calculation through Polaris
-Celestial Bodies Recognition
-Total Correction by Pole Star Azimuth
*Results Graphical Representation on Plotting Chart.
This update includes a renovated layout adapted to iOS 13 that includes "dark mode", very useful for twilight observations.
"Total Correction algorithm" by observation of the Pole Star azimuth has been added.
The system checks that the data entered in the text fields is correct.
The positioning report has been updated to pdf format.
The "Share" functionality has been added for the positioning report.
Ratings and ReviewsSee All
Needs basic layout updated
I’m asked for time during a sight, but the inputs are set for degrees. Slick interface, but developer needs to use it in the real world.
Developer Response ,
The concepts that you are referring to, are the Greenwich Hour Angle (GHA), the Local Hour Angle (LHA) and Sidereal Hour Angle (SHA). These angles have to be measured in degrees. Understanding that the (hh) and (hh + 1) angles are referred to the previous and subsequent values at the UTC of each observation.
NaviStar has been presented at the IAMU 2018 congress and has been tested by captains in real exercises. NaviStar would help seafarers providing the calculation of its truth position and reducing the time to do so (not more than three minutes). Also, the print option of NaviStar results would provide evidence of their observations to authority surveyors.
Note that in case of “Black Out” or GPS offline, celestial Navigation would be their only possibility to safely proceed to port, in such cases, I think that you would like to have a tool that could help you to calculate your truth position.
For any other observation I remain at your disposal at firstname.lastname@example.org
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The developer will be required to provide privacy details when they submit their next app update.
With Family Sharing set up, up to six family members can use this app.