DIGITAL LIBRARY OF GLT SARAWATI BAL MANDIR , NEHRU NAGAR , BY DEEPESH SINGH

5.  The elliptical path through which all the
celestial bodies move is imperishable and
unslakened.
 This is called trinabhichakram because to form
an elliptical three points called foci is
constant.
 Rigveda 1.164.2

21. 



40. विक्लानाां कलाषष्टचा: तत् षष्टया भाग
उच्यते |
तत्त्रिशताां भिेद्राशश: भगणो दादशैि ते
| |
सूययशसध्दान्त: १२८