Divisional charts (Vargas)
Divisional charts (vargas) divide each sign into smaller parts to create focused charts, such as the Navamsa (D9) for marriage and the Dashamsa (D10) for career. They refine what the main Rashi chart promises.
Also known as: varga charts, shodashavarga, shodashvarga, d charts
Parashara describes sixteen charts, the Shodashavarga: D1, D2, D3, D4, D7, D9, D10, D12, D16, D20, D24, D27, D30, D40, D45 and D60. The number tells you how many parts each sign is split into; the Navamsa (D9), for instance, divides each sign into nine parts of 3°20′.
Each varga answers its own questions: D2 wealth, D3 siblings and courage, D4 property and fortune, D7 children, D9 spouse and dharma, D10 career and status, D12 parents, D16 vehicles and comforts, D20 spiritual practice, D24 learning, D27 strengths and weaknesses, D30 misfortunes, and D40, D45 and D60 the subtler, inherited and karmic layers of the chart.
A planet in the same sign in the D1 and D9 is called vargottama and is especially strong. The higher the division, the more it depends on an exact birth time: the D60 ascendant changes about every two minutes. Parashara gives the D60 the greatest weight, 4 points out of 20, ahead of the Rashi (3½) and Navamsa (3).