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However,without technology you can see all of the same objects in the night sky that ancient people saw.There is a lot to see and study.It takes a little work and a little knowledge,but it is really very easy. If you live in the northern part of the world,you can search the night sky to the north and find Polaris②. Ancient people watched Polaris for a long time and discovered that it moves very little.It can always be found in the same place in the northern sky.Ancient people used the Polaris to guide their ships across oceans. In the southern part of the world,you can see Alpha and Beta Centauri③ in the night sky.They point the way to the beautiful group of stars called the Southern Cross④.Ancient people used the Southern Cross to guide their ships.