What is a Natal Chart? If you look at the words "natal chart' you could read them another way -- "birth map" -- this may help you understand what is being talked about. Basically, the natal chart is a map of the sky including the positions of the planets for the time that you were born. Where you are born has an impact on what is seen in the sky, e.g., if two people were born on the same day and at the same time but in a different city and country, what is seen overhead ...