Jupiter Mahadasha, Sun Antardasha (Guru–Surya)

The Sun antardasha is the sixth of the nine sub-periods inside the Jupiter mahadasha. 16 × 6 ÷ 120 makes the Jupiter–Sun 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.

The Sun’s turn in the Jupiter mahadasha comes only after Jupiter, Saturn, Mercury, Ketu and Venus have run, which takes 10 years 6 months 12 days. When the Jupiter–Sun sub-period gives way to Jupiter–Moon, 4 years 8 months of the Jupiter mahadasha remains.

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

The Nine Pratyantardashas of Jupiter–Sun

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

How Jupiter and the Sun Stand to Each Other

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

Counted between the signs they own, Leo is the 9th from Jupiter’s Sagittarius and Leo is the 6th from Jupiter’s Pisces. Whatever the ascendant, the houses Jupiter rules and the houses the Sun rules sit at those same distances from each other in the chart, so the Jupiter–Sun sub-period always joins lordships that far apart.

The Same Pair the Other Way Round: Sun–Jupiter

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

What the Texts Assign to Jupiter and the Sun

The karaka list the tables give Jupiter, the mahadasha lord, is children, teachers and gurus, higher learning and dharma; for the Sun, the lord of the Jupiter–Sun sub-period, it is father, government, authority, the soul (atma) and administration. Parashari practice reads the sub-period through the houses each of the two owns and occupies in the birth chart, and through where the Sun stands counted from Jupiter there. None of that is a forecast, and this page makes none: without a chart, Jupiter–Sun 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 Punarvasu, Vishakha or Purva Bhadrapada opens life inside the Jupiter mahadasha itself, part-way through, and whether the Jupiter–Sun sub-period is still ahead depends on how far the Moon had gone into the nakshatra. For a birth in Krittika, Uttara Phalguni or Uttara Ashadha, the Sun mahadasha comes first, and the Jupiter mahadasha is the fifth in that sequence.

The Other Sub-Periods of the Jupiter Mahadasha

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