EZ Celestial LLC, Glendale, Az. making celestial navigation easy since 2011


Nautical Almanac, Pub. 229 Tables, and an Expert to Help You Use Them.


Simple Setup and Planning Functions. Internal Calculations to Find your Fix.


The Nautical Almanac Lunar Tables and an Expert to Help You Use Them.


JUST RELEASED - ezAlmanac is Now Available for Windows 10!

Good Through 2059

No need to buy a Nautical Almanac every year.  Our products use a JPL ephemeris that includes years 1961 thru 2059.  Free updates when leap seconds are added.

Full Sight Reduction

See all of the steps to learn how to do it yourself manually, or have your reductions performed automatically and view your fix.

Animated StarMaps

View the positions of the navigational objects at your DR position and animate their movement over the course of the day.

Calculated Event Times

Easily compute the rise, set, meridian and twilight times for the Sun, Moon and planets. All times based on the selected date and your current DR position.

Predicted Altitudes

Accurate predicted altitudes and azimuth of all bodies to preset your sextant and help you find the object in the sky.

Universal Windows App

The Windows version is developed for the Universal Windows Platform. It works on any Windows 10 device.

Compare to iPad VersionCompare.html


Purchase, use, and review the fully unlocked ezAlmanac (ie. not the training version) - and get a promotional code for any other app we offer.  After posting a review to the app store, send an email to support@ezcelestial.com to tell us of the ID you used for the review and the app you would like.  We will provide a promotional code for the requested app within 2 business days.

Note that the offer extends across platforms, so you can buy and review the Windows 10 version and get the iPad version for free - or vice versa.

READ MOREhttp://www.ezcelestial.com/QuickStartGuide.pdfhttp://www.ezcelestial.com/QuickStartGuide.pdfshapeimage_9_link_0