**Aryabhata’s division of Zodiac**

In the Aryabhata system, with the introduction of the Rasi system, the ecliptic was divided into 12 equal parts. Each equal part contained two Nakshatra. There were 24 Nakshatras and total number of NakshatraPadas(quarters) in one sign equalled 8 Padas. In this way the total number of NakshatraPadas was 8×12=96 Padas.

This type of division has been inferred from Arya Siddhanta of Aryabhata where he has given the maximum limit of Equinox as oscillating 24° on either side as shown in Figure I.

(a)Point A to B, Point B to C, Point C to D, Point D to A are Equinoctial and Solsticial points. The distance between these points is equal to 3 signs.

(b)Each sign contains 8 Nakshatra Padas. Therefore there are 24 Padas of Nakshatras between each Equinoctial and Solstical points. Therefore the four points contain 24 x 4 = 96 Padas.

(c)The series consists of 24 Nakshatras as shown in Table II** **

**Nakshatras as per Aryabhata**

(d)The Rasis or signs contain these Nakshatras as shown in Table III.** **

**Nakshatras allotted to Rasis**

**Varahamihira’s Division of Zodiac**

Varahamihira developed his own system.

(i)Varahamihira wanted to integrate Rasi, Nakshatras, planets, ecliptic etc., in his system.

(ii)In order to integrate the whole system to make it the compendium of Hora Sastra, he addressed the discrepancies found in the work of Aryabhata, which otherwise well suited his own system.

(iii)He first connected the planets to the Nakshatras. But it was difficult for him to connect either the 7 or the 9 planets to 24 Nakshatras. Though he tried to connect the 9 planets to 24 Nakshatras, he noticed certain discrepancies. Leo sign as per Aryabhata’s system included Phalguni and Hasta Nakshatras. Aries sign had Krittika and Rohini in it. If the Sun and the Moon were given the lordship of these Nakshatras respectively, then in Leo there was no Nakshatra to give the lordship of the Sun because if Phalguni was given the lordship of Venus, then in successive order the Nakshatra was missing to be given the lordship of the Sun.

(iv)Thus noticing the above discrepancy he divided Phalguni, Ashadha and Bhadrapada into two parts each. Thus he prepared a new series of 27 Nakshatras .

(v)In this new series, each sign contained 9 Padas of Nakshatras or 2 % Nakshatras with each Nakshatra being 13° 20′ of arc.

(vi)He, then proceeded to assign the Nakshatras under the domain of planets.

(vii)The new system had 27° Precession instead of Aryabhata’s 24°. The Equinox of Varahamihira moved 108° unlike 96° of Aryabhata.

Varahamihira connected the whole system to his system of astronomy.

**Courtesy : Modern Astrology(Courtesy: Dr. Arastu Prabhakar, MSc., MBA, Ph.D.)**

**Continue from :**The Ingenious Vimshottari Dasa System – Part IA