Nautical Almanac

by Navigational Algorithms


Maps & Navigation

1.99 usd



The Nautical Almanac in your smartphone or tablet


Celestial navigation - Astronavigation Nautical almanac: - Equatorial geocentric coordinates: RA/GHA, Declination for Sun, Moon, and navigational stars and planets . - SD, HP - SHA - GHA Aries Visible sky: - Identification of stars and planets - it plots the visible sky from a position at a certain moment. - Polar and horizon chart. Planning observation: - Twilight - Rise/set for Sun and Moon - Meridian passageSolar time: - GAT, LAT, LMT - Equation of timeSidereal time (Aries): - LHA, GAST, LASTLunar distances- Three methods of location: by input dialog box, using Google Maps, direct location (provider: GNSS, Network), to initialize your position.For GPS or network location - "Location" App permission must be allowed. Switch on you GPS, and then automatic location detection is possible- Your last position is automatically saved.- Storage permission needed for Google Maps cache and for save your position.Manual and examples at the developers website.- New optimized user interface.- Three methods of location: by input dialog box, using Google Maps, direct location (provider: GNSS, Network), to initialize your position.- Storage permission needed for Google Maps cache and for save your position.- Updated to Android 11.0v3.x- Lunar distances almanac- Updated for Leap second- Improved time picker: scrollable, editable

Read trusted reviews from application customers

Very useful and easy to navigate. Friendly user.

Eddie Yee

Not complete because not include data for Local Hour Angle Not enough data from Almanac Need to put geographical position of the bodies Not total Almanac Too simple

Roslan Rahman

Fantastic app. Every component works. Only annoyance is the time changes to Local instead of UT1 when you enter a new time. But a few clicks and all is OK. Update...Even better now with the April 2020 update. Date and time are UT1. I love it.

A Google user

Seems useful but I can't find any way to have it use my phones GPS location - it has to be I put in manually. It's good to be able to override the default, but my phone knows where it is why doesn't an app running on the phone know it? There's a Locate button but it doesn't work on Android 10 (Pixel 4) Also what I really want is sun and moon meridian passage and altitude at MP.

Warren Brownell

Great application. Worked on Android 5. Upgrade to Android version 6 and nothing works, always crahes

A Google user

This app is easy to use now as it have many function to determining solar system bodies and stars.

Azam Noor

Displays a lot of useful info in a clear, easy to read format. Excellent features for celestial navigation. Small size. Well done.

Shawn Cook