Coeli - Stella 2000 

Complete astronomy software suite exploring realistic skies in real time, with observing log, Live Orbits, Sky Quiz, spoken guidance, A-Z encyclopedia, and a concentrated search embracing planets, comets, asteroids, DSOs, and 300,000 stars.
astronomy planetarium sky simulator orrery atlas skymap starmap stars planets comets asteroids dsos galaxies encyclopedia

Adastra FREESTAR 

Experience accessible astronomy with a real-time sky, comprehensive reports, arcsecond accuracy, and exciting events such as animation and live tracking.
astronomy astro astronomical planetarium sky skymap star map celestial atlas stella stars planets sun moon

Adastra Plus 

Experience complete astronomy with a real-time sky, comprehensive reports, arcsecond accuracy, and exciting events such as animation and live orbit-tracking. Sky Quiz and two encyclopedic reference sources are interactively linked to the sky display
astronomy astro astronomical planetarium sky skymap star map celestial atlas stella stars planets sun moon