Celestial Navigation is a navigation app developed by Dr Harald Merkel. The last update, v1.40, released on August 20, 2020, and it’s rated 4.40 out of 5 based on the latest 10 reviews. Celestial Navigation costs $1.99 and requires iOS 11.0+ and Android 10 or newer to download.
Sextant Sight Reduction
Video: Celestial Navigation Overview
Description
This app does all the calculations to reduce a sextant reading to a line of position on the map. All intermediate numbers are shown to check your manual calculations.
Want to enjoy Celestial Navigation on your desktop? Download the latest APK (1.40, 51 MB) or choose your preferred version, and follow our Bluestacks emulator guide for easy installation on Windows or macOS. For any assistance with downloading or installing APK files, feel free to visit our forums!
User Reviews and Ratings
★★☆☆☆Capable but crashes on iPad
A free app that is fully capable of calculating a line of position directly from a sight. Unfortunately after the first couple of sights the app won’t open anymore and just crashes immediately on startup.
★★★★★Exceptionally Accurate and easy
This is a terrific app for reducing celestial navigation sights. Easy to use and is exceptionally accurate. You can change the settings to suit your preferences. It will store your sights and allow you to select which ones to plot. I’ve tested it many times against hand calculations and every time and it comes right on the money. I highly recommend this app.
★★★★★Superb software
I’m running this on an iPad 4 Mini and having a blast relearning what I once learned with a calculator and reams of graph paper. Seamless integration of sights, reduction, and plots. I especially appreciate the sight entry, storage, edit, and selection features — well thought out and very handy. Simple and capable, I will be using this for fun and to teach and demonstrate the craft. Thank you for the superb app!
★★★☆☆Some UI issues
There is evidently a lot of thought and effort that has gone into the math and the mechanics of this app. It definitely has potential to be great. Unfortunately user interface problems detract from its usefulness.
One example. Depending the size of your screen, you might or might not be able to enter latitudes and longitudes. On my iPhone 7, the digits are obscured due to lack of space.
