Dear Ernst, I need your help.
As my last questions reveal I am trying to understand about Amanta vs. Purnimanta systems for calculating the Masa.
Additionaly and at that moment more important for me is to understand the application of Adhika Masa. I have found that there is a difference in the way you calculate it then others calculate it and I need to know why. Why I need to know? Not to find fault but in order to advice a friend for a Muhurta and also in general for later purposes I need to know otherwise I cant be sure to give good advice.
In your book you give a diagram (please see attachment). Your Software gives the dates for Adhika Masa as follows: October 1th - October 31th.
Other Software (Jagganatha Hora, Sri Jyothi Star) and a Calendar Programm (Vaisnava Calendar) we use give the dates for Adhika Masa as follows: September 17th - October 16th.
I am usung sidereal zodiac and the two new moons happen in Virgo. They way you use it is that the Adhika Masa is inserted after the full moon that follows the new moon on September 17th, as shown in the diagramm and as shown by the dates above.
The other programms insert Adhika Masa directly after the new moon on September 17th.
Why is it that you give different dates then they? Is there an error on your side (Sorry to say) or an their side? Has it something to do that you use tropical zodiac or is this calculation independent of that? Whereform comes the information on how you use Adhika Masa? Is there a book wherein this is explained?
For clarification I would be very grateful because I need to know whats happening here.
Thanks in advance.
Dear Ernst, I read what you write in your book but you dont tell there wherefrom the method you use comes from. Why do you insert it after the full moon and not after the first new moon?
If you do remember in the future please let me know because so far I have not found anything where this is explained and I would really like to know.
Or maybe you remember if it was one of the astronomical books like Surya Siddhanta, Siddhanta Siromani, Bhaskara, Al Baruni, Panca Siddhantika, etc.
Or if it was an Astrological book?
An old Sanskrit book or a new one?
That hint would help me to know in which direction I need to search.