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For the Sun, the contact the start of the eclipse is from the west, and the release the end is toward the east. = 1
From that, the calculation of the "Three-Signs-Less" Ascendant Tribhona Lagna the point of the ecliptic 90 degrees behind the rising point should be performed using the methods starting with "Kham-Dani."
Regarding the movement through directions and regions: by these two methods, the divisor Hara is established with the expansion. The area which is in excess is called the "Refinement" Samskara. = 4
With the division of the motion of the Ascendant Lagna-driggati, place it separately. Refined by its co-latitude degrees at the end of the union, the zenith distance degrees are always southerly. From those zenith distance degrees, [calculate] 2250 placed in the direction. Squared and divided by three less the visibility, the visibility diminished, this is the lower half-side. Having given this, it is diminished by the day-length and then increased by that. This is 1. It becomes the "Divisor with the Sine" Sako-hara. Of the degrees of difference between the "Three-Signs-Less" Ascendant and the Sun, 90 original: "shakra" degrees are divided by the divisor. These become the minutes of the parallax in longitude Lambana, as before in the division...
Here, the difference between the "Three-Signs-Less" Ascendant and the Sun should be calculated as it is from the three signs 90 degrees. Between these two, the lesser should be known. This means the other is the greater. For example, if the Three-Signs-Less Ascendant is 9 [Capricorn] and the Sun is 11 [Pisces], the difference is 2. From this, these [values] arise, because the Sun is greater than the Three-Signs-Less Ascendant. = 4
...in the increase or decrease, 2, the minutes of parallax are multiplied by twenty-three. They are added or subtracted from the lunar day the half-duration of the lunar day, without division. The motion of the zenith distance is the source of the latitude Shara. Now, regarding the parallax in latitude Nati:
From those [values], again the zenith distance degrees are 3. By the degrees, the part of the human shadow multiplied by ten, divided by the teeth the number 32, at the door, stripped of clothing meaning a specific mathematical reduction, with those [results]:
The results obtained externally are in their own direction; this is the parallax in latitude Nati. This, refined into digits Angulas and so on, is the corrected Sphuta value. From this, the half-duration...
In the same manner as before. = 1
...4. The duration contact, the strike release, the degrees are placed separately. By subtracting and adding the parallaxes, those two [are found].
By the zenith distance degrees multiplied by ten, the result for the Sun is obtained. Separately, eighteen minutes are added. Thus, the calculation is made. Likewise, the result for the Sun in minutes. If one does not understand the subtraction of the Sun's minutes, then the divisor is one part of the degrees. If the minutes are greater in the Sun, then the calculation should be made in terms of the Brahma-parts. In that place, it should be cleared. Again, there, the divisors are to be used. The difference of the results in digits, etc., from the zenith distance—that elevation is either Southerly or Northerly. = 2