More Software Like 2011 Nautical Almanac 2011

Orbit Xplorer

Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 29 premade simulations with activities page in html-format.

Aciqra

Aciqra is a free and open source virtual planetarium and sky mapping program which tracks celestial bodies including planets, deep sky objects and stars.

Professional Numerologist

Professional numerology software for business and personal use, by renowned numerologist Matthew Oliver Goodwin. This free, fully functional trial version allows you to print reports/charts for yourself.