Navamsa (D9 chart)
The Navamsa (D9) divides each sign into nine parts of 3°20′. After the Rashi chart it is the most important chart in Vedic astrology, read for marriage, the spouse, dharma and the true strength of each planet.
Also known as: navamsha, navansh, navamsa chart, navamsa kundli
Each navamsa is exactly one nakshatra pada, so the D9 ties the signs to the nakshatras. In fire signs the nine parts are counted from Aries, in earth signs from Capricorn, in air signs from Libra and in water signs from Cancer. The Navamsa ascendant changes roughly every 10–15 minutes.
Parashara reads the spouse from the Navamsa, and astrologers look here for the promise of marriage, the partner’s nature and the inner quality of married life. It is also called the fruit of the tree: a planet strong in the D1 but weak in the D9 may promise more than it delivers, while the reverse can mean results improve with time.
A planet in the same sign in both charts is vargottama and gains strength, as does a debilitated planet that is exalted in the Navamsa. Because the D9 shifts quickly, an accurate birth time matters before relying on its finer points.