Saptamsa (D7 chart)
The Saptamsa (D7) divides each sign into seven equal parts of about 4°17′. It is the divisional chart for children and grandchildren, read with the 5th house and Jupiter.
Also known as: saptamsha, saptansh, saptamsa chart, d7 kundli
In odd signs the seven parts are counted from the sign itself; in even signs, from the sign seventh from it. Parashara reads “sons and grandsons” from the D7; today astrologers read it for all children, for the experience of parenthood and, more broadly, for creativity and legacy.
Astrologers look at the D7 ascendant and its lord, the 5th house of the D7, and the position of Jupiter, the karaka of children, alongside the 5th house and lord of the Rashi chart. Its ascendant changes roughly every 12–20 minutes, so a reliable birth time is needed.
Questions about children are personal and sometimes painful. A chart can describe timing and tendencies, but it cannot replace medical advice, and a responsible astrologer never draws firm conclusions from the D7 alone.