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

XIV.41 XIV. ASTRONOMICAL INSTRUMENTS 279 40-41. Assuming these vināḍīs as the time elapsed since sunrise and taking the Sun at the first point of Cancer, calculate the longitude of the rising point of the ecliptic. When (the longitude of) the Sun happens to be equal to that, then, by virtue of the graphical methods and instruments available to the science of mathematical astronomy, the sage Agastya (i.e. the star Canopus) that looks like the special red tilaka-mark on the forehead of the lady-like southern direction shines forth and delights the minds of men. Such is the divine knowledge based on time. Fig. XIV. 4 Consider Fig. 4. It represents the celestial sphere for a place in latitude Ø. SEN is the horizon and Z the zenith; ♈RET is the equator and P and Q are its north and south poles; ♈GSD is the ecliptic. 40a. A1.B. काद्यायगग्रं (B3. काझाप) D. याम्यतातो वनिता 41a-b. B. ०पलब्धः छेध्यकं (B2. क) b. B1. तदशे; B2. तदंशो; B3. तदृशो B. सहस्तांशो d. A. सुख; B. स्तुख B. विषतिल्को b. B. प्रकाशना पातम् | B. यातं c. A.B. याम्यास्ता (B. त्ता) वनिता; A. मुनिणस्त्यः c. B. खसुखपति