Celestial Illumination

App calculates ground illumination from sun and moon for any location on earth

This app calculates the ground illumination from natural sources like the sun and the moon, and other sources like the stars, making the calculation very accurate. The app uses a model based on internationally accepted standards.

With our DBG Nautical Celestial Illumination app, you have the latest beauty in our overall app portfolio. This app is helpful for the experienced navigator (because you can plan the most appropriate time to make star observations), as well as in the context of (student) training (because a lot of additional information is available in the app, including an extensive theory section).

The illumination is calculated for 24 hours or the trajectory of the ship's journey (based on course and speed). The graphical representation of the results is well designed; the curves allow easy interpretation of the results. In addition, several extras are included, such as a very accurate picture of the position and lighting of the moon and the possibility of using different coordinate systems. The help pages are extensive and will guide you to fill in the parameters.

We hope this app will help you to continue on the subject of ground illumination and help you to understand its importance for observations. With the calculations, you can start working immediately in practice and deepen your nautical knowledge.

Warmly recommended by the DBG Nautical team!