Question

Arrange the following steps of 'Spashta-graha-sadhana' (calculating true planetary position) in their correct mathematical sequence:
A. Mean Planet +/- Half Sheeghra Correction
B. First Manda Correction
C. Second (Final) Sheeghra Correction
D. Manda-spashta Planet
E. Anomaly (Sheeghra-kendra) Calculation

• A. E, A, B, D, C
• B. B, E, D, A, C
• C. A, B, E, D, C
• D. E, D, B, A, C

Hint:

"Half-Sheeghra, then Full-Manda, then Full-Sheeghra." This is the classic rule for outer planets in the Surya Siddhanta.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
For planets like Mars, Jupiter, and Saturn, Indian Siddhantas use a four-step iterative process to find the true position from the mean position.

Step 2: Sequence of Steps:
1. E. Anomaly (Sheeghra-kendra): First, calculate the distance from the conjunction point.
2. A. Half-Sheeghra: Apply half of the second correction to the mean planet to get a better 'base'.
3. B. First Manda: Apply the full Manda (center) correction to the result of step 2.
4. D. Manda-spashta: This intermediate result is called the Manda-spashta planet.
5. C. Final Sheeghra: Apply the full Sheeghra correction to the Manda-spashta planet to get the true (Spashta) longitude.

Step 3: Final Answer:
The correct sequence is E, A, B, D, C.