Free Celestial Mechamics Software

Alcyone Ephemeris by alcyone software

Alcyone Ephemeris is an accurate and fast astronomial ephemeris calculator covering the period 3000 BC to AD 3500. It calculates heliocentric, geocentric, and topocentric positions of the Sun (Earth), Moon, and planets in ecliptical, equatorial, and horizontal coordinates, with optional corrections for parallax and refraction; rectangular coordinates, velocity, acceleration, apparent diameter, magnitude, phase, lunar libration and more.

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Smooth Program Scheduler by XemiComputers Ltd.

This freeware will start any program you want at a scheduled time. It can perform both one-time and recurring tasks. For special programs additional control is available so you can use Scheduler to make fully automated tasks to do different actions.

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Skywriter Plane Screen Saver by Acez Software

Surprise your family with a personalized smoke message. Simply tell Skywriter Plane Screen Saver to write your words in the blue sky and watch as puffs of smoke spell out clever messages! Be mesmerized as the little plane whizzes around your computer screen, drawing pictures and sending greetings!

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TempoPerfect Computer Metronome by NCH Software

TempoPerfect is a Metronome that runs on your PC and can be controlled using your mouse or hotkeys. Unlike mechanical metronomes that wind down, TempoPerfect provides a clear and precise beat that can be acurately adjusted for the correct bpm.It features a visual beat indicator bar that bounces from left to right in time with the beat. This provides musicians with a very helpful visual cue and also includes a tempo guide in the main window.

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