Astronavigation, no thanks, it belongs in a museum a long time ago. But this is wrong. In the museum belongs the extremely tedious and still widespread graphic-based intercept method of Saint Hilaire. It would be stupid and at the same time negligent to surrender completely to a system that although fast, precise and comfortable to use, was created by humans and to completely dispense with the sun as a reliable guide. The sea is not a safe place.

With this app on a tablet or smartphone, astronomical navigation is almost as easy as satellite navigation. However, you need a sextant because the sun does not transmit its distance to the observer's position by radio signal. Only satellites can do that. With satellites, a location can be determined every second and very accurately, which is not possible with the sun. But that is not important on long sea voyages. In the past, ships also sailed and found their destination.

With the sun, navigation is safe because it cannot be confused with any other star. Moreover, it has always been the most important navigation star for sailors, accounting for more than 90 % of all positioning. Stars can only be observed during the short periods of twilight, because only then can the horizon still be seen.

The function of the app is based on a work by the famous German mathematician Carl Friedrich Gauss. Anyone can learn to use it intuitively in a few minutes. Except for the need to use a sextant, it is comparable to satellite navigation on a chart plotter.

A Nautical Almanac is not required and the correction of the sextant reading is done automatically. An upper limit in the altitude of the sun to be measured does not have to be respected and a dead reckoning location is unnecessary. An user does not need to have any knowledge of mathematics or astronomy and he does not need to draw anything or write anything down. To determine a location, it is only necessary to enter the altitude of the sun read from the sextant at two different times. Compared to all other classical navigation methods, the Gauss method has the greatest accuracy. Position deviations are mostly caused by inaccurate data of heights and times.

The app is suitable as a backup in case satellite navigation is not available. With a cheap plastic sextant and this app, every skipper has an emergency navigation system that can be used immediately to safely arrive at any destination.

Anyone who prefers to find their way on long voyages with the help of nature and focus their attention more on their surroundings than on a chart plotter can finally do so with this app, without having to solve complicated formulas, make drawings or search around in tables.


The functions of the app are:

1. Circle of position navigation
2. Taking into account change of locations
3. Sun almanac with <0.4' accuracy
4. Automatic correction of sextant reading
5. Observations over 1 following day
6. Basic world map
7. Observation at the lower sun limb
8. Display of DR the position

The professional version has the following additional functions:

1. Parallel full-fledged second system for any input
2. Inclusion of the noon latitude
3. Dead reckoning module for recording changes of location
4. Sun almanac with 0.1' accuracy
5. Observations over 3 following day
6. Download high resolution maps
7. Observation also at the upper sun limb
8. Measurement of distance and course to a target
9. Scale display at <50 NM zoom level
10. Continuous display of DMG, CMG and VMG

Additional APK Information

Latest Version

Sun Navigation Pro Update 1.0.4-pro

Developed by

Helmut Hoffrichter

Requires Android

Android v13

Available on

Get Sun Navigation Pro on Google Play

Category

TOOLS

More Information

  • Package Name
    com.hhof.navi
  • Languages
    --_-- 86
  • Requires Android
    Android v13
  • Content Rating
    Everyone
  • Architecture
    arm64-v8a,armeabi-v7a,x86,x86_64
  • Permissions
  • Signature

User Reviews

Total Reviews:
+ Reviews
Rating
Reviews
5
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Most Popular
Google Maps
Google Maps
Thanks for using Google Maps! This release brings bug fixes that improve our product to help you discover new places and navigate to them.<br><br>Become a beta tester: http://goo.gl/vLUcaJ
4.0
Google Play services
Google Play services
4.3
Google
Google
• Use voice commands while navigating – even when your device has no connection. Try saying &quot;cancel my navigation&quot; &quot;what&#39;s my ETA?&quot; or &quot;what&#39;s my next turn?&quot;<br>• It&#39;s easier to access privacy settings from the homescreen. Just tap your Google Account profile picture.
4.2
Google Chrome
Google Chrome
Thanks for choosing Chrome! This release includes stability and performance improvements.
4.1
Gmail
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4.2
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3.9
YouTube
YouTube
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3.9
Google Drive
Google Drive
4.3
Android Accessibility Suite
Android Accessibility Suite
TalkBack 14.2<br>• Proofreading now supports spelling and grammar correction <br>• Expanded support for automatic image descriptions <br>• Improvements to continuous reading <br>• New languages and shortcuts for braille <br><br>TalkBack on Wear OS 14.1<br>• Bug fixes
3.8
Netflix
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4.2
Microsoft 365 (Office)
Microsoft 365 (Office)
4.7
Microsoft SwiftKey AI Keyboard
Microsoft SwiftKey AI Keyboard
General improvements to ensure your Microsoft SwiftKey Keyboard runs smoothly.
4.2
Snapchat
Snapchat
Bug fixes and improvements! 👻
4.0
MX Player
MX Player
- Better support for USB OTG.<br>- Improvements on player gesture.<br>- Improvements on Privacy Folder landscape mode.<br>- Other experience optimization and bug fixes.
4.3
Spotify: Music and Podcasts
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We’re always making changes and improvements to Spotify. To make sure you don’t miss a thing, just keep your Updates turned on.
4.4
LinkedIn: Jobs & Business News
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Thanks for using LinkedIn! We regularly update our app to fix bugs, improve performance and add new features to help you connect with your professional network and advance your career.
3.9
SHAREit: Transfer, Share Files
SHAREit: Transfer, Share Files
Fixed bugs, improved performance, now SHAREit is even better to use.
4.3
Free Fire: The Chaos
Free Fire: The Chaos
[New event - The Chaos] Vote for bizarre incidents to take place in the matches, including out-of-control plane routes and genetically modified mushrooms!<br>[NexTerra 2.0] Map-balancing adjustments and significant file size reduction. Zipway reworked and added to CS-Ranked.<br>[New Character - Ryden] The genius releases a robot spider that limits enemy movement and inflicts damage over time.<br>[Improved battle feedback] Enhanced the sound effects for knockdown streaks and visual effects for headshots.
4.2
Facebook Lite
Facebook Lite
3.5
8 Ball Pool
8 Ball Pool
It’s time for a new 8 Ball Pool update!<br>A new great Season is down the road, so download the latest version and enjoy the game at maximum.<br>Also, we’ve made some tweaks and improvements and solved some pesky bugs, making 8 Ball Pool even smoother for your entertainment!<br>Download the latest update now to get your hands on the new content! Time to hit the tables!
4.3
Subway Surfers
Subway Surfers
- The biggest season yet is about to erupt!<br>- New game mode - Floor is Lava! Play Subway Surfers like never before in this ultimate skills test, and unlock Red Panda.<br>- Experience an eggstravagant Easter celebration in Ireland with Meggan, George in an all new Outfit, and the Megga Bite Board.<br>- Join the St. Patrick’s festivities with Lucky and his Shamrock Shebang Board.<br>- Moira gets a Holi-inspired Outfit - jump into the colorful festivities.
4.5
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TikTok
Add the latest stickers to your videos.
3.9
Microsoft OneDrive
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You can now display your media files on a Chromecast receiver or TV from a compatible device. Look for a Cast icon showing in the top toolbar. We hope you enjoy this top-requested feature!
4.5
Roblox
Roblox
To make Roblox work better for you, we deliver updates regularly. These updates include bug fixes and improvements for speed and reliability.
4.2