Khandakhadyaka: A Practical Manual

...are obtained. The remainder, multiplied by 30 and divided by the same divisor, gives the signs rashi, and those signs are to be placed below the signs. Then, the remainder, multiplied by 60 and divided by the same divisor, gives the minutes bhaga, and those are to be placed below the signs. In this way, by the method of the Sun, the signs, degrees, and minutes of the Sun are obtained. That same is the mean Mercury and Venus. That same is the shighrocca of Mars, Jupiter, and Saturn.

Now, an example: The desired day-count is 72715. Multiplied by 800, it becomes 58172000. Added to 438, it becomes 58172438. When divided by 282207, the remainder after subtracting revolutions is 23245. This, multiplied by 12, becomes 278940. When divided by 282207, the signs are 0. The remainder is 278940. This, multiplied by 30, becomes 8368200; when divided by the same divisor, the obtained degrees are 28. The remainder is 186404; multiplied by 60, it becomes 11164240. When divided by the same divisor, the minutes are 38. Again, the remainder is 80374. This, multiplied by 60, becomes 4822440; when divided by the same divisor, the seconds are 16. In this way, the Sun is obtained in signs, degrees, minutes, and seconds.


0
28
38
16

This same is the mean Mercury and Venus. This same is the shighrocca for Mars, Jupiter, and Saturn. That is the meaning. Now, the calculation of the mean Moon.

The Sun, multiplied by [the number of] days and divided by the remainder of the lost lunar days, added to the Sun [at a different position], plus the minutes of the arc, is the midnight mean Moon. original: "ravigunatithirbhāgayutah prthagarkastrigusitādavamaseṣāt. vagrabhaśilambāmśayuto'rddharātriko madhyamacandrah" ||6||

Meaning of the verse: "Ravibhirgunah" means multiplied by 12 the number of lunar months. "Ravigunatithayah" are the days. "Bhagah" are the degrees. "Ravigunatithirbhagayutah" is the result. Who is this? He says: "Prthagarkah" means the Sun in the second position. "Trigusitādavamaseṣāt" means multiplied by 3 and the remainder of the lost lunar days. "Vagrabhaśilambāmśayutah" means the arc and the minutes derived from that.