What was astronomy used for in ancient Egypt?

Astronomy played a considerable part in fixing the dates of religious festivals and determining the hours of night, and temple astrologers were especially adept at watching the stars and observing the conjunctions and risings of the Sun, Moon, and planets, as well as the lunar phases.

What did Egypt discover in astronomy?

In the 3rd century B.C., Eratosthenes was a Greek astronomer working in Egypt when he noticed the Sun directly over one city cast a shadow in another city 500 miles north. Eratosthenes understood correctly that meant Earth’s surface is curved. He calculated correctly that Earth is a ball about 25,000 miles around.

What did they use astronomy for?

Astronomy has and continues to revolutionize our thinking on a worldwide scale. In the past, astronomy has been used to measure time, mark the seasons, and navigate the vast oceans. As one of the oldest sciences astronomy is part of every culture’s history and roots.

Why were Egyptian discoveries in astronomy and medicine important?

Egyptian discoveries in astronomy and medicine were important because they created the commonly used calendar and helped perform the world’s first surgery. … The Hyksos were able to conquer Egypt during the Middle Kingdom.

What tools did Egyptian astronomers use?

We’ve already mentioned the merkhet, but the ancient Egyptians had other instruments that they used for astronomy purposes. These included the sundial and water clocks. A sundial tells the time of day when there’s sunlight because of how it contains a flat plate and a gnomon, which casts a shadow onto the dial.

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Why is astronomy important to Aboriginal?

Astronomy was used by indigenous Australians to develop calendars and navigate the land. Each hunter-gatherer tribe lived according to an annual cycle, which informed what they ate and hunted and where they travelled.

When was astronomy invented?

The first documented records of systematic astronomical observations date back to the Assyro-Babylonians around 1000 BCE. From this cradle of civilisation in Mesopotamia – in the southern part of present-day Iraq – astronomers had built up knowledge of the celestial bodies and recorded their periodic motions.

How did Mayans use astronomy?

Maya astronomer-priests looked to the heavens for guidance. They used observatories, shadow-casting devices, and observations of the horizon to trace the complex motions of the sun, the stars and planets in order to observe, calculate and record this information in their chronicles, or “codices”.