This section is from the book "The Brihat Jataka Of Varaha Mihira", by N. Chidambaram Aiyar. Also available from Amazon: Brihat Jataka of Varahamihira.
9. If the rising sign at the time of query be Taurus or Leo, multiply the Lagna Sphuta (the Longitude of the Ascendant) by 10; if it be Gemini or Scorpio, then multiply the Sphuta by 8; if Aries or Libra, then by 7; if Virgo or Capricorn, then by 5; and if it be any of the remaining signs, then by the number of such sign from Aries (a). Again, if the planet occupying the rising sign be Jupiter, multiply the Lagna Sphuta by 10; if it be Mars, by 8; if Venus, by 7; if any of the remaining planets by 5. If several planets occupy the rising sign, then multiply the Lagna Sphuta by the factor for each of such planets. Add up the several products and find the sum (b).
In this and in the next stanza the Author states a process for discovering the Nakshatra (Asterism occupied by the Moon) of the querent, his wife, brother, son and enemy. The figures given in the Text are known as those of Rasi Gunakara and Graha Gunakara - Zodiacal and Planetary factors, referred to in the Chapter on Ashtakav - argas.
(a) For instance, if Cancer be the sign, it being the 4th sign from Aries, the factor for Cancer is 4. The factor for Sagittari is 9; that for Aquarius is 11 and that for Pisces is 12,
(b) Suppose the Lagna Sphuta to be 5o 10° 20o and suppose Jupiter and Venus to occupy the rising sign - Now, from the Lagna Sphuta it is evident that the rising sign is Virgo. The factor for Virgo is 5. Muliplying 5s 10° 20' by 5, we get 26s 21° 40'. Dividing this by 12 we. get as remainder 2s 21° 40' (R.). Again, the factor for Jupiter is 10 and that for Venus is 7. Multiplying 5s 10° 20' by 10, we get 53s 13° 20'. Dividing by 12 we get as remainder 5s 13° 20'. Again, multiplying 5s 10° 20' by 7 we get 37s 12° 20'. Dividing by 12 we get ls 12° 20'. Adding this to 5s 13° 20' we get 6 25° 40' (G). Adding together R and G we get 9s 17° 20'.
10. Multiply this sum by 7, add 9 to the product, if* the rising sign be a moveable sign; or subtract 9 from the product, if the rising sign be a common one; or leave the product, as it is, if the rising sign be a fixed one (a). Divide the sum or the difference or the product, as the case may be, by 27. The remainder will represent the Nakshatra of the querent at the time of birth. By a similar process applied to the Sphuta of the 3rd, 5th, 6th and 7th houses (b), we shall get the Nakshatras of the querent's brother,, son, enemy and wife.
(a) According to Bhatta-Utpala, if the rising Drek - kana be the first Drekkana of the sign, 9 is to be added; if it be the 2nd, 9 need neither be added to nor subtracted from the product; and if it be the 3rd, 9 is to be subtracted from the product.
(b) If you add 2 signs to the Lagna Sphuta, you get the sphuta of the 3rd house which represents a person's brother; if you add 4 signs to the Lagna Sphuta, you get the Sphuta of the fifth house which represents a person's son; if you add 5 signs to the Lagna Sphuta, you get the Sphuta of the 6th house which represents a person's enemy; and if you add 6 signs to the Lagna Sphuta you get 30 the Sphuta of the 7th house which represents a person's wife. Multiply the several Sphutas by the Zodiacal factors of the several houses and by the factors of the planet occupying such houses, add the products, multiply the sum by 7, add or subtract 9, if necessary, divide the sum or remainder by 27, the remainder will give you the Naksha - tra of the several persons.
11. Multiply the same sum (a) by 10, 8, 7, 5; add or substract 9, if necessary, as stated above; divide the result by their appropriate numbers (b); you will obtain the Year, Ritu, Month, Lunar day, day or night, Naksha - tra, the Ghatika, the rising Sign and the rising Navamsa at the time of birth.
In this and in the following three stanzas, the Author states another process for discovering the year, month, etc. of the birth of a person.
(a) The sum obtained at the end of Stauza 9.
(b) These and the processes of division will be found explained in the next three stanzas.
12. From the product of the sum by 10 shall be determined the year (age), Ritu and month of birth (a); and from the product of the sum by 8 shall be determined the Paksha (fortnight) and Tithi (lunar day) (b).
(a) This product is the first of the four products referred to in the last stanza with 9 added to or subtracted from it, if necessary. Divide the quantity by 120, the remainder will give the age of the person. Divide the same quantity by 6, the remainder will give the Ritu of birth from Sisira. Divide the same quantity by 2, the remamder will give the first or the second month of the Ritu
(b) This product is the second of the four products referred to in the last stanza with 9 added or subtracted, if necessary. Divide this quantity by 2 the remainder will give the fortnight of birth. Divide the same quantity by 15, the remainder will give the lunar-day.
13. From the product of (a) the sum by 7 shall be determined whether the birth occurred by day or by night and also the Nakshatra.
(a) This product is the 3rd of the four products mentioned in the 11th stanza with 9 added or subtracted, if necessary. Divide the quantity by 2, the birth will have occurred by day or night according as the remainder is one or more than one. Divide the same quantity by 27, the remainder will give the Nakshatra from Aswini.
14. From the product (a) of the sum by 5, shall be determind the Ghatika, the rising Sign, the Hora and the rising Navamsa at the time of birth.
(a) This product is the last of the four products mentioned in Stanza 11 with 9 added or subtracted, if necessary. Divide the quantity by the number of Ghatikas in the day or night of birth as the case may be; the remainder will give the Ghatika from Sun-rise or Sun-set at the time of birth. Divide the same quantity by 12, the remainder will give the rising sign from Aries. Divide the quantity by two, the Hora of birth will be the 1st or 2nd according as the remainder is 1 or more than 1. Divide the quantity by 9, the remainder will give the number of the rising Navamsa from the first Navamsa of the rising Sign.
Similarly, divide the quantity by 12, the remainder will give the number of the rising Dwadasamsa; divide the quantity by 3, the remainder will give the rising Drek - kana.
N.B. - In all the above cases, it is evident that the remainder will be in the shape of signs, degrees and minutes. The number representing the signs, is the number representing the particular Nakshatra, Year, Month, Paksha, Tithi, Ghatika, etc, at the time of birth - the degrees and minutes only go to increase the number by unity.
15. Multiply by two the number of Matras in a person's name; add the length of shadow to it; divide the sum by 27; the remainder will give the Nakshatra, at the time of birth, counted from Dhanishta.
The name is the name given to a person at the Nama - karana ceremony. A short vowel sound is counted as one .Matra and a long vowel sound is counted as two, and a consonant is counted as half a Matra. The length of the shadow of a twelve inch Sanku shall be added in inches.
16. The Dik numbers are:
East | 2 |
S. East | 3 |
South | 14 |
S. West | 10 |
West | 15 |
N. West | 21 |
North | 9 |
N. East | 8 |
Multiply by 15 the number for the Dik or direction which the querent faces; add to the product the number of persons facing the same Dik, divide the sum by 27. The remainder will give the Nakshatra of the person from Dhanishta.
This stanza contains another process again to discover the Nakshatra.
17; Thus has been stated by me various processes for the construction of a lost horoscope. Intelligent pupils shall study them carefully and use them.
 
Continue to: