'Sized stars' presentation slideshows

Astronomers label stars within a constellation based on their apparent brightness ,

As early as 5000 years ago, people began naming patterns of stars, called constellations , in the honor of mythological characters or great heroes. Today, 88 constellations are recognized. They divide the sky into disjoint units. Every star in the sky is in one of these constellations.

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The birth, life, and death of stars.

Stellar Evolution. The birth, life, and death of stars. Models of star evolution. Star Birth. Large clouds of gases and dust called nebluae are the birthplace of stars. Star Birth.

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Electron microscope images show different types of gold nano - stars .

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