Decan

What are Decans?

Decans are special groups of stars that ancient people used to tell time at night. Long ago, in ancient Egypt, people looked up at the sky to know what time it was. They split the sky into 36 parts, and each part was a decan. Imagine the sky like a big clock with 36 hands!

How Did It Work?

Each decan was like a star marker that appeared one after another as the Earth turned. When a new decan appeared, it meant a new "hour" of the night had begun. This helped people know when to start or finish their work, or even when to go to sleep!

Fun Star Facts

The first decan started with the bright star Sirius. This star was very important because its rising told people when the Nile River would flood each year. Floods brought rich mud for growing food, so everyone watched for Sirius!

Decans were also used in other places like ancient India and Greece. They were connected to planets, directions, and even different qualities that people believed affected life. Today, you can still see pictures of decans in old buildings like the Dendera zodiac.

These star groups show us how clever ancient people were at using the night sky to organize their days and understand the world around them.