The Sciences

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But there’s much more to see in the night sky. Galaxies and globular star clusters. Colorful double and multiple stars. And diffuse, dark, and planetary nebulae that mark the birth and death of countless millions of stars in the Milky Way. Now, there’s an easier way. As you read this page, you’ll discover how to build an extraordinary level of observational skill that few can match, regardless of your current skill level. And you’ll enjoy astonishing...


Calculates and displays the positions of Jupiter's four main (Galilean) moons - Io, Europa, Ganymede and Callisto for any date and time The displays can be animated to show the movement of the satellites, their shadows and the Great Red Spot Compass directions show the orientation of Jupiter and its satellites depending on what hemisphere you live in and what optical configuration you have selected Displays the Rise, Transit and Set times of Jupiter for your location so you can make...


“Do not be afraid to become a star-gazer. The human mind can find no higher exercise.” – Garrett P. Serviss Or perhaps you already know the brighter stars and constellations, but want to learn the sky more intimately. As you read this page, you’ll discover an astonishing resource that will make it easy to learn the stars and constellations as well as you know the streets of your own home town. And you won’t just learn a few...