पञ्चसिद्धान्तिका (आचार्य वराहमिहिर - सूर्य, रोमक, पौलिश, वासिष्ठ एवं पितामह सिद्धान्त)

XVIII.8 XVIII. VĀSIṢṬHA-PAULIŚA – RISING AND SETTING 317 (ii) The interval between the risings, i.e., the synodic period is 399 − 1/9 = 398 8/9 days. (iii) 391 padas make one full sidereal revolution of Jupiter, i.e., 360° of mean motion. In one synodic period, Jupiter moves 36 padas. One pada = 55' 15". 36 padas = 36° 9'. At epochal days 34 d, 34 n, Jupiter's longitude is 18 padas (= 16° 35'). But NP have taken the 18 given here as degrees. This is wrong. The difference of 1° 25' is too small to show itself in their verification, Table 32, Part II. But for Saturn this pada constant is 89, and for Mars, 85. Taking these as degrees have resulted in big differences which have puzzled them. See part II, page 124. (iv) In 391 syn. revolutions there are 391 + 36 = 427 solar sidereal revolutions = 36 Jupiter's sid. revolutions. ∴ one sid. rev. of Jupiter takes 4332-22-48 days, and one sid. rev. of the sun = 365- 15-32 days. The latter being very near Pauliśa's 365-15-30, we conclude that, there too, as in the Moon, it is mixed up with the Vāsiṣṭha's. TS and NP give the same interpretation, though making more than necessary emendations. In their verification, TS use the rough syn. period of 399 days instead of the correct 398 8/9, making the sid. period = 4333-35-0. क्रमशो म(ध्यः) स्फुटश्च खण्डौ [कार्यो] त(यो)-श्च वि(श्ले)षात् । स्फुटहाना द्युषु दद्या(न्मध्यात्) सौ(र्ये)ऽन्यथा हानिः ॥ ८ ॥ 8. One after another, mean and true segments are to be arranged. Taking their difference, if the true is less than the mean, the difference is to be added to the group of Jupiter's days (left over in the synodic cycle as the remaining days). Otherwise, (i.e., if the true is more), the difference is to be subtracted. 'True' here means 'true as corrected for the eq. of the cent'. How to get these true positions is given in verses 9-11, and the segments are to be got using these. So, this verse seems to have strayed here from after verse 11. The mean positions are to be got by using the remaining padas, extending the work done in verse 7. Kāryau is introduced to make up for the syllables wanting. Saure would mean 'pertaining to either Sun or Saturn'. But we are dealing with Jupiter Sūriḥ here. Saurya alone would mean, 'pertaining to Jupiter'. Some mss. have no dvi. Computing and arranging the mean and true segments against each other is to facilitate inter- polation to any required day. It will also be useful to prepare an ephemeride. The example worked will make things clear.

---

6a. A1. विवतु; A2. विवन् C.D. त्रिंशद्. A.B. द्विगुणं b. A.B.C.D. तावतीभिरपि. A.B. गुरुः c. B2.3. Unindicated om. of नव [नव....प) दमिति in 7d. d. A1. तुद्या; A2. नुद्या; B. om. line. A. ॰स्थिदिवसाः 7a. A. उदयस्वांशं; B. a-c. missing. C.D. उदयनवांशान् b. C.D. गुणे द्युदये. A. ॰रूदद्यः c. A.C.D. छिन्ने d. A. वदामिति; B. ॰मितिः. B1.3. साष्टदशं 8a. A.B. द्विक्रमशो; C. द्वि: क्रमशो; D. द्वि [हितः] क्रमशो A. प्यस्फुट b. A.B.C. खण्डैस्तयोश्च (A. थौश्च) विशेषात्; D. खण्डस्तयोश्च विशेषात् c. A.B.C.D. स्फुटहानौ B2. द्युयु d. A. तथ्यत्सौरिन्यथा; B. तत्सौरिन्यथा; C. मध्यात् सौरऽन्यथा; D. त [न्म] ध्यखण्डोऽन्यथा