ABOUT THESE EXPERIMENTAL MOBILE APPS

I never made applications specifically intended for display on small mobile devices before.

These are my very first experimental attempts at programming for smart-phones while learning how it's done.

Some of the astronomy-related apps are built around the NASA/JPL Horizons API.

I've programmed in multiple languages for over 50 years, using large desktop monitors, but this type of programming is new to me. Not all of my work, especially large astronomical tables, is suitable for tiny smart-phone displays.

I'm trying to keep up with the times at least a little bit by redesigning some of them scaled for portable devices.

These programs have only been tested on a Samsung Galaxy A02s and on a Galaxy A24 5G phone - Android OS.