Stellarium 0.10.6

Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
It is being used in planetarium projectors. Just set your coordinates and go.

Features

sky

• default catalogue of over 600,000 stars
• extra catalogues with more than 210 million stars
• asterisms and illustrations of the constellations
• constellations for twelve different cultures
• images of nebulae (full Messier catalogue)
• realistic Milky Way
• very realistic atmosphere, sunrise and sunset
• the planets and their satellites

interface

• a powerful zoom
• time control
• multilingual interface
• fisheye projection for planetarium domes
• spheric mirror projection for your own low-cost dome
• all new graphical interface and extensive keyboard control
• telescope control

visualisation

• equatorial and azimuthal grids
• star twinkling
• shooting stars
• eclipse simulation
• skinnable landscapes, now with spheric panorama projection

customizability

• plugin system adding artifical satellites, ocular simulation, telescope configuration and more
• ability to add new solar system objects from online resources...
• add your own deep sky objects, landscapes, constellation images, scripts...

Download:

Windows Users

Linux Users

Mac Users

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Celestia 1.6.1

Celestia  is the popular planetarium program by which you can view the universe in 3-D anywhere. It has all the same great features as Celestia including 3-D planet viewing, viewing over 100,000 stars, traveling beyond our galaxy, and more. Plus, it leaves no personal information behind on the machine you run it on, so you can take your favorite astronomy program with you wherever you go.

Features

Unlike most planetarium software, Celestia doesn't confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy. All movement in Celestia is seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. A 'point-and-goto' interface makes it simple to navigate through the universe to the object you want to visit. Celestia is expandable. Celestia comes with a large catalog of stars, galaxies, planets, moons, asteroids, comets, and spacecraft. If that's not enough, you can download dozens of easy to install add-ons with more objects.

 or

Download Portable 33MB

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Astronomy (DK Eyewitness Books)

Astronomy (DK Eyewitness Books)
Publisher: DK CHILDREN | 2008 | ISBN: 0756637678 | Pages: 72 | PDF | 25,4 MB 

The word "astronomy" comes from a combination of two Greek words: astron, meaning "star" and nemein, meaning "to name." Even though the beginnings of astronomy go back thousands of years before the ancient Greeks began studying the stars, the science of astronomy has always been based on the same principle of "naming the stars." Many of the names come directly from the Greeks, since they were the first astronomers to make a systematic catalog of all the stars they could see. 
A number of early civilizations remembered the relative positions of the stars by putting together groups that seemed to make patterns in the night sky. One of these looked like a curling river, so it was called Eridanus, the Great River; another looked like a hunter with a bright belt and dagger and was called Orion, the Hunter. Stars are now named according to their placement inside the pattern and graded according to brightness. For example, the brightest star in the constellation Scorpius is called a Scorpii, because a is the first letter in the Greek alphabet. It is also called Antares, which means "the rival of Mars," because it shines bright red in the night sky and strongly resembles the blood-red planet Mars

The most trusted nonfiction series on the market, Eyewitness Books provide an in-depth, comprehensive look at their subjects with a unique integration of words and pictures.
Superb full-color photographs of scientific instruments, experiments, and innovative 3-D models reveal the discoveries and research that have transformed our understanding of the Universe. Learn how space probes photograph planets, what causes a meteor shower, what makes Mars red, why the Sun shines, where the Moon came from, how the first telescopes worked, the stages in the life of a star, and more.

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