Yoga (Hindu astrology)

Ancient Hindu astrologers seem to have confined their exercises to the seven planets:[2] the Sun, the Moon, Mercury, Venus, Mars, Jupiter, and Saturn; the lunar nodes Rahu and Ketu are rarely mentioned.

Parashara refers to five additional chayagrahas, invisible mathematical solar positions which affect individuals and nations.

The Rigveda refers to a total of thirty-four chayagrahas: twenty-seven nakshatras lunar stations) and the seven astrological planets.

[3] Elsewhere, however, it refers to forty-nine chayagrahas: the previous thirty-four plus the two lunar nodes, the twelve zodiac signs, and ayanamsa.

[7] The word yoga is derived from the Sanskrit root Yuj, meaning to join properly, to control judicially, or to integrate.

[17] Yogas are generally classified as Chandra (Moon), Surya (Sun), Nabhasa (celestial), Raja, Dhana, or Darida.