Nilakantha's Annual Horoscopy

At the time of birth, according to the Siddhanta Rahasya A technical astronomical manual used for calculations., the count of elapsed days Ahargana: the total number of days passed since a specific cosmic epoch is 2128, and the cycle is 6. At sunrise, the mean Sun is 9s 6° 7' 43". Added by 22 seconds for the terrestrial longitude Deshantara: a correction for the distance between the birth location and the prime meridian, it becomes 9s 6° 8' 5". When moved by the desired time of 37 ghatis and 53 palas, the resulting current Sun is 9s 6° 45' 25". The anomaly of the Sun Mandakendra: the angular distance of the planet from its apogee is 5s 11° 14' 35". The correction for the center Mandaphala: the equation of the center, used to find the true position from the mean position is positive: 0° 42' 23". The corrected Sun is 9s 7° 37' 48". The precessional degrees Ayanamsha: the correction for the wobbling of the Earth's axis are 17° 49'. The ascensional differences original: "charakhandani" are 75, 60, 25. The positive ascensional correction is 138. Thus, at the moment of birth, the true Sun is calculated as 9s 7° 30' 6".

Now, at the time of the Year Entrance The Solar Return, when the Sun returns to its exact birth position., the count of days is 3595 and the cycle is 9. At sunrise, the mean Sun is 9s 6° 32' 58". When the terrestrial longitude correction is added, it is 9s 6° 33' 20". When moved by the desired time of 12 ghatis, 18 palas, and 30 vipalas, the resulting current Sun is 9s 6° 45' 27". The anomaly of the Sun is 5s 11° 14' 33". The correction for the center is positive: 0° 42' 23". The corrected Sun is 9s 7° 27' 50". The precessional degrees are 18° 26'. The ascensional differences are 75, 60, 25. The positive ascensional correction is 136. Thus, at the moment of the Year Entrance, the true Sun is 9s 7° 30' 6".

Because this solar position for the current year has become exactly equal to the Sun's position at the time of birth, the opinion of Ganesha Daivajña A renowned Indian astronomer, author of the Grahalaghava (c. 1520 CE). is hereby refuted. It is understood that Ganesha Daivajña did not observe that equality is achieved through this specific method.

If it is argued that Ganesha Daivajña observed that the Sun in the almanac Panchanga, when moved by the actual hours and minutes, does not reach exact equality in minutes and seconds with the birth Sun—and therefore he proposed an additional correction for the Year Entrance time—we respond by explaining the reason for this discrepancy. The truth is that this difference arises for a reason he did not perceive. We shall demonstrate it: when there are discrepancies between various astronomical systems, such as the Sauras or the Brahmas Different "schools" of Indian astronomy with slightly different constants for planetary motion., a gap appears between the Sun at birth and the Sun listed in a standard almanac.

If both calculations were performed using a single system, no such gap would occur. Furthermore, when calculating the planets for a person's birth, one uses the longitudinal and ascensional corrections for the specific village of birth. However, the creator of an almanac uses the corrections for the village where the almanac is published. Every village has different corrections. This is why a discrepancy arises. If the corrections for the same location were used for both, the gap would never occur. Whichever text was used to calculate the Sun at birth, if the same corrections are applied to the Sun calculated from that same text at the time of the Year Entrance, the values (down to the seconds) will be identical.