Simulator

A simulation of the Prague Astronomical Clock (Pražský Orloj), configurable for any location on Earth, with user-settable time.

SkySafari 7 Pro simulates over 75 million stars down to 16th mangnitude, 3 million galaxies down to 18th magnitude, and 620,000 solar system objects; including every comet and asteroid ever discovered. And, state-of-the-art mobile telescope control.

Stellarium Mobile Plus is the next generation astronomy star map app. It combines a realistic and accurate night sky simulation with a gigantic amount of online imaging and sky objects catalogs.

This is the first version of the simulation How Airplanes follow the Curvature of the Earth, Physics Simulation. It lacks the whole range for the Angle of Attack and does not take air density and compressibility on thrust calculations into account. This page is kept for archival purpose.

CAXCAD Optical Design Software

A planetarium for your terminal! Explore stars, planets, constellations, and more, all rendered right in the command line—no telescope required. ✨🪐 - da-luce/astroterm

A completely rewritten virtual lens/mirror design workshop.

By converting our sims to HTML5, we make them seamlessly available across platforms and devices. Whether you have laptops, iPads, chromebooks, or BYOD, your favorite PhET sims are always right at your fingertips.Become part of our mission today, and transform the learning experiences of students everywhere!

A free, open-source web app for creating and simulating 2D geometric optical scenes.

Sky Map (formerly Google Sky Map, open sourced in 2012) - GitHub - sky-map-team/stardroid: Sky Map (formerly Google Sky Map, open sourced in 2012)

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5-10x Faster Discrete Event Simulation

Planetary motion

Explore the night sky tonight from your location. Try this exquisite stargazing tool. Take an effortless journey through thousands of stars, planets and constellations.

Stellarium Web is a planetarium running in your web browser. It shows a realistic star map, just like what you see with the naked eye, binoculars or a telescope.

Stellarium is a planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free.

TheSkyLive.com provides detailed information, precise position and sky charts for the most import Solar System and Deep Sky objects

LabVIEW is a graphical programming environment engineers use to develop automated production, validation, and research test systems.