Sun Mahadasha, Jupiter Antardasha (Surya–Guru)

The Jupiter antardasha is the fifth of the nine sub-periods inside the Sun mahadasha. 6 × 16 ÷ 120 makes the Sun–Jupiter sub-period 9 months 18 days on the classical year of twelve thirty-day months, which is how the texts state it, or 292 days on the solar year of 365.2425 days that the dasha calculator uses.

Jupiter’s turn in the Sun mahadasha comes only after the Sun, the Moon, Mars and Rahu have run, which takes 2 years 18 days. When the Sun–Jupiter sub-period gives way to Sun–Saturn, 3 years 1 month 24 days of the Sun mahadasha remains.

Jupiter’s 16 years make every Jupiter antardasha 16/120 of the mahadasha containing it, so inside the Sun’s 6 years the Sun–Jupiter sub-period is the fifth-longest of the nine.

The Nine Pratyantardashas of Sun–Jupiter

A pratyantardasha of Sun–Jupiter is 6 × 16 × its own lord’s years ÷ 14,400, and the nine run in cycle order starting from Jupiter. Venus’s is the longest inside Sun–Jupiter at 48 days and the Sun’s the shortest at 14 days, on the classical year and rounded to the day.

How the Sun and Jupiter Stand to Each Other

On the natural friendship table, the Sun and Jupiter each count the other a friend. The Sun–Jupiterrelationship is mutual, so it reads the same from either lord.

Counted between the signs they own, Sagittarius is the 5th from the Sun’s Leo and Pisces is the 8th from the Sun’s Leo. Whatever the ascendant, the houses the Sun rules and the houses Jupiter rules sit at those same distances from each other in the chart, so the Sun–Jupiter sub-period always joins lordships that far apart.

The Same Pair the Other Way Round: Jupiter–Sun

6 × 16 equals 16 × 6, so the Sun antardasha of the Jupiter mahadasha is exactly as long as Sun–Jupiter: 9 months 18 days. Nothing else about Jupiter–Sun matches. It is the sixth sub-period of Jupiter’s 16 years rather than the fifth of the Sun’s 6; it opens after 10 years 6 months 12 days of the Jupiter mahadasha, against 2 years 18 days here; and its pratyantars start from the Sun instead of Jupiter.

What the Texts Assign to the Sun and Jupiter

The karaka list the tables give the Sun, the mahadasha lord, is father, government, authority, the soul (atma) and administration; for Jupiter, the lord of the Sun–Jupiter sub-period, it is children, teachers and gurus, higher learning and dharma. Parashari practice reads the sub-period through the houses each of the two owns and occupies in the birth chart, and through where Jupiter stands counted from the Sun there. None of that is a forecast, and this page makes none: without a chart, Sun–Jupiter is a length and a position, and the 9 months 18 days above is the whole of what can be said about it in general.

A birth with the Moon in Krittika, Uttara Phalguni or Uttara Ashadha opens life inside the Sun mahadasha itself, part-way through, and whether the Sun–Jupiter sub-period is still ahead depends on how far the Moon had gone into the nakshatra. For a birth in Punarvasu, Vishakha or Purva Bhadrapada, the Jupiter mahadasha comes first, and the Sun mahadasha is the sixth in that sequence.

The Other Sub-Periods of the Sun Mahadasha

The full table for the Sun mahadasha, with where each sub-period opens and closes, is on the Sun mahadasha page. How the Sun mahadasha is read as a whole is in our Sun mahadasha article, and the system itself in Vimshottari dasha explained. This page in Hindi: सूर्य महादशा में गुरु अंतर्दशा.