Software by Abecedarical Systems

This is an easy to learn, user friendly, high level, computer programming language. T is more like natural English than most other computer languages and this makes a T program both easy to write and easy to understand.

Almanac calculates the equatorial coordinates of the sun, the moon, and the planets. From these it calculates the times of rise, set, and meridian transit for each of these celestial bodies. Additionally, it can calculate the times for twilight