The
Tropical Zodiac precedes, roughly, 72 years per degree and this is known as the
Precession of the Equinoxes.
At the time of Pope Gregory, the seasons were changing and Gregory was in a fix. He empowered Christoper Clavius to head the Gregorian Calendrical Reforms Committe. The Sine Tables of Aryabhata and Madhava were here. Also the Tan tables of Brahmagupta. A's Sine Table was the first sine table erected in the entire history of Maths, says Wikipedia.org.
Now Clavius learnt Astronomy and Maths from the Jewish Guru, Pedro Nunes. Clavius empowerd Matteo Ricci, to go to India, to Kerala and learn from the Time Keepers of Panchangas, to learn from the Brahmins and the Moors, this astro mathematical knowledge, which alone could solve the problem from them.
Now
Aryabhata's Sine Tables is called the Table of R Sin Differences.
R is the magic figure in Astronomy and is computed thus
PI
= C./D
Pi
= C/ 2 r
C
= 2 Pi r
360
= 2 Pi r
r
= 360/2Pi
r
= 180/Pi
r
= 57.3 degrees
r
= 57.3*60 minutes
r
= 57.3*60*60 seconds
r
= 206265 seconds and this R in seconds is Known as the The Magic Figure of
Astronomy.
The
base of all astro algorithms for Astro Software is this R.
Bhujajya
/ Trijya = Opposite Side/ Hypotenuse .* R
Even
though Bhujajya resembles the modern Sine , it acutally is R Sin.
Clavius.
Matteo Ricci et al got access to Indian trignometric functions and inverse
functions ( arcsin, arccos, arctan, cot, secant and cosecant ) and with the help
of Indian Maths, (India in general and Kerala in particular) , solved the problems
of the Julian Calender.
Pope
Gregory had to add ten more days to the Julian Calender. Today is Oct 4 and he
decreed, like God, that tomorrow is Oct 14 ! This is the so called " Gregorian
Calender", which Albert Pyke, the Father of American Freemasonry called the
Vulgar Era !
This
is what happens when you base everything on the Tropical Zodiac, which is
preceding roughly 72 years per degree. On the other hand the Sidereal Zodiac
doesnt precede, as it is static.
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