This is what we see when we first look at the sky
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The Night Sky - An Introduction to Constellations

When we gaze up into the night sky we see many stars, the planets, the moon, and sometimes a meteor or a comet. If we're very lucky we may witness a supernova once or twice in our lifetime. Over the course of days, weeks and months the planets "wander" among the stars which, while they move nightly across the night sky, keep an unvarying relationship to each other, at least at first glance.

Ancient societies noticed this and believed that some stars had a special significance and associated some patterns of the stars with the goddesses, gods, and stories of their culture. These groups of stars are called Constellations.

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