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Chapter 1

Tajika-Nilakanthi The signature "Ta. Ni." refers to the Tajika Nilakanthi, a seminal 16th-century Sanskrit text on annual horoscopy influenced by Persian astrology (Tajika).

...these result. When divided by nine, the quotient is degrees. Multiply the remainder by sixty and divide by nine to get minutes. Again, multiply the remainder by sixty and divide by nine to get seconds. Thus, the Moon original: "shashi" is determined starting from signs and degrees for that specific moment.

Now, the Calculation of Lunar Days Tithisadhana: the method for determining the specific lunar date based on the angular distance between the Sun and Moon. Divide 48,000 This is a mathematical constant used in these specific lunar calculations by the total sum of the past and future duration of the lunar mansion Nakshatra: one of the 27 sectors of the lunar zodiac. This gives the true motion Spashtagati: the actual velocity of a planet at a specific moment of the Moon in minutes and seconds.

Example: At the time of the Year Entrance, the Hasta nakshatra was active. On the previous day, 41 ghatikas and 24 palas A ghatika is 24 minutes; a pala is 24 seconds had passed. Adding the desired time Ishtaghatis: the time elapsed from sunrise to the moment of the Year Entrance of 12 ghatikas and 18 palas, the total time passed within the Hasta nakshatra is 53 ghatikas and 42 palas. Multiply this by sixty (3222). Dividing by the total past and future duration of the nakshatra (58|52), with the dividend 1933|20 and divisor 59|32, the result is 54|44|1. The number of nakshatras from Ashvini Ashvini is the first of the 27 nakshatras is 12; multiply this by sixty (720) and add the previous result (54|44|1) to get 774|44|1. Double this: 1549|28|2. Divide by nine: the quotient in degrees is 172|9|47. Divide these degrees by thirty: the result is the Moon's position in signs original: "rashyadichandrah" for that moment, which is 5 signs, 22 degrees, and 9 minutes This indicates the Moon is at 22° 09' of the 6th sign, Virgo.

47 Now, the Calculation of Velocity original: "gatyanayanam". Divide 48,000 by the total past/future nakshatra duration (58|52); the result in minutes etc. is the Moon's true motion, 815|24. In the same manner described, the true planets for that specific moment are established. || 19 ||

Now, in seven verses, the calculation of the house cusps and junctions Bhavasandhi: the boundary points where one astrological house ends and the next begins is explained. This includes the calculation of the Ascendant Lagna: the zodiac sign rising on the eastern horizon at the moment of birth/event, the calculation of the desired time, the Midheaven Dashamalagna: the 10th house cusp or the highest point on the ecliptic, and the hour angle.

First, the knowledge of calculating the hour angle Nata-unnata: the distance from the meridian or the horizon is given: If the desired time is before midday, the half-day duration should be reduced by the time passed since sunrise; that is the "East Hour Angle." At night, if the desired time is before midnight, the half-night duration should be reduced by the time passed since sunset; that is the "East Night Hour Angle."

Regarding the definition: when the desired time is after midday, subtract the half-day duration from the time passed since sunrise; that is the "West Hour Angle." Similarly, after midnight, subtract the half-night duration from the time passed since sunset to find the "West Night Hour Angle." The Sun for that moment original: "tatkaliko-arka" must be added to the precession of the equinoxes Ayanamsha: the shifting of the Earth's axis which differentiates the Tropical and Sidereal zodiacs. To calculate the Sun's position for the Ascendant, the degrees already passed must be taken.