सिद्धान्तशिरोमणि: गणिताध्याय (भास्कराचार्य - ग्रहगणित, मध्यमाधिकार व स्पष्टाधिकार सटीक)

MADHYĀDHIKĀRA — SECTION II BHAGAṆĀDHYĀYA Verses 1 to 6. The number of sidereal revolutions of the Sun during a Kalpa is 4320000000. It is also the number of those of Mercury and Venus, and those of the Śīghrocclas of the planets Mars, Jupiter and Saturn. The Moon makes 57753300000 sidereal revolutions in a Kalpa, the Mars 2296828522, the Mercury's śīghroccha 17936998984, the Jupiter 364226155, the śīghroccha of Venus 7022389492 and the Saturn 146567298. The sidereal revolutions of the apogees of the Sun and the Moon and those of the aphelia of Mars, Mercury, Jupiter, Venus and Saturn in a Kalpa are respectively 480, 488105858, 292, 352, 855, 653, 41. The retrograde sidereal revolutions of the nodes of the orbits of Moon, Mars, Mercury, Jupiter, Venus and Saturn are respectively 232311168, 267, 521, 63, 893, 584. Comm. Since Mercury and Venus will be oscillating about the Sun in their apparent motion as seen from the earth in a long period of time, the number of sidereal re- volutions made by the Sun is also equal to that made by Mercury and Venus. Since, as we see in the Course of the Spaṣṭādhikāra the Sun plays the part of what is called the Śīghroccha of the three major planets named Mars, Jupiter and Saturn, the number of the Sun's sidereal revolutions is also the same as that of their śīghrocchas. The reason why the sidereal revolutions of what are called the śīghrocchas of Mercury and Venus are the same as the heliocentric sidereal revolutions of Mercury and Venus will be clarified in the spaṣṭādhikāra. The reason also why the sidereal revolutions of the major planets are