How do you read a divisional chart in astrology? For finding longitude of a planet in any Divisional chart multiply the degrees, minutes, seconds by the number of the Divisional chart (2 for hora, 3 for drekkana and so on) now leave the completed signs and retain the degrees, minutes, seconds as the longitude of planets for that divisional chart. Oct 07, 2020 D10 chart is a divisional chart from the name you can understand that the Rashi is divided into 10 parts. Dasamsa means Dasam Amsa or 10 th division. What is my first house astrology. When a Rashi is divided by 10 parts and the divisional chart prepared is called the Dasamsa chart. D10 is a divisional chart, which is prepared for the main birth chart or D1 chart.