Galaxies, stars and planets: understanding our position in the cosmos

This ebook, Galaxies, stars and planets: understanding our position in the cosmos, is a general introduction, including scale of the universe from the very large to the very small; orbits and gravity; the Solar System; the Sun and other stars; galaxies and the composition of astronomical objects.

After reading this ebook, you should be able to: understand the scale of items within the Universe; appreciate the wide variety of objects contained in the Universe; understand the relative sizes of the planets within the Solar System; and calculate how long it takes for light to reach the Earth from the Sun.

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