Sankranti

Definition

Sankranti is the moment the Sun crosses into a new sidereal rashi — a sign of the zodiac measured against the fixed stars. Each Vedic solar month is counted from this entry, in the nirayana (sidereal) system. Because the sky slowly shifts (precession), this ingress lands around the middle of the matching month rather than its third week, as it would in the Western sayana system. A separate affliction, Sankranti dosha, attaches to anyone born on the changeover day, while the Sun sits between zero and one degree of the new sign.

In Tradition

Both the classical and the modern Jyotish texts treat Sankranti as an inauspicious moment to be born: someone born at the Sun's entry into a new sign is said to suffer unless remedial measures are carried out. The sources agree on seven types of Sankranti, one for each weekday starting from Sunday, attributed to Parashara, and they prescribe ceremonial worship as the remedy.

In Practice

A Vedic astrologer looks for Sankranti dosha when a birth falls on the day the Sun changes sign. In one modern account the affliction holds while the Sun is between zero and one degree of the new sign, with the whole day carrying the dosha. The sources read the mechanism two ways: one says the graha (planet) ruling the birth weekday turns inauspicious, so the person suffers; another says the houses ruled by the vara lord (the lord of the weekday) are destroyed, so those areas of life won't bear fruit until remedies are done. The seven weekday types are Ghora, Dhwankshi, Mahodari, Manda, Mandakini, Mishra and Rakshasi. The remedy is a yajna (fire ritual) of the nine planets, worshipping the Sankranti idol with its Adhideva the Sun and Pratyadhideva the Moon; one source instead offers it to the Sun, Moon and Mrityunjaya Shiva in the kalasha (sacred water-pot). Separately, at the sankranti the Moon's nakshatra sets the month's weather through one of four mandalas.

Historical Origin

The affliction appears in the Brihat Parasara Hora Sastra (Chapter 90), the classical Jyotish source for the seven weekday types and the planetary remedy. Modern authors carry it forward: Levacy in Beneath a Vedic Sky, Larsen in Jyotisha Fundamentals, and Cole in Science of Light, who also report the zero-to-one-degree rule. The weather classification by mandala is given in Mundane Astrology by Mehta and Rao.

Further Reading

• Maharshi Parasara, Brihat Parasara Hora Sastra
• Levacy, Beneath a Vedic Sky
• Larsen, Jyotisha Fundamentals
• Cole, Science of Light: An Introduction to Vedic Astrology, Volume I
• Mehta/Rao, Mundane Astrology