From Aries to Libra is the Northern Celestial Hemisphere. When the Sun is in the Northern Hemisphere, days have more duration.
From Libra to Aries is the Southern Celestial Hemisphere. When the Sun is in this Hemisphere, nights have more duration.
The Great Circle called the Zodiac, ” the oblique line that beareth all planets”, as Dante called it, is divided into 4 quadrants of (360/4) 90 degrees.
The First 90 degrees is Odd The Second 90 degrees is Even The Thirdt 90 degrees is Odd The Fourth 90 degrees is Even
The distance traversed by a planet is called Bhuja & the untraversed distance is Koti.
We give below the equation of Bhuja
In the First Quadrant, if a planet traverses 42 degrees, the bhuja is 42 degrees
In the first 90 degrees, the same longitude In the Second 90 degrees, longitude = 180- longitude In the Third 90 degrees, longitude = longitude – 180 In the Fourth 90 degrees, longitude = 360 – longitude
This equation of Bhuja should be applied for all astro mathematical calculations.
The Zodiac Software was developed according to the principles of Vedic Spherical Astronomy & Trignometry.
The longitudes measured along the Ecliptic are called true longitudes and the longitudes measured along the Vishuvat Vritta, the Celestial Equator, are known as Right Ascension.
When we say the Right Ascension of East Point, we mean the East Point along the Celestial Equator. The Right Ascension of the Meridian Cusp( RAMC ), is the longitude of the MC or Mid Heaven measured along the Celestial Equator.
The formula for computing the MC , the Madhya Lagna is as follows
tan K = tan R /cos w
where is the K is the longitude of the MC, and R, Sidereal Time converted into degrees.
180 degrees from the Madhya Lagna or the MC is the IC, the Imum Caeli or Patala Lagna.
The Ascendant is a point on the Celestial Horizon. The Eastern Celestial Horizon
First compute E, the Right Ascension of East Point, the East Point lying on the Celestial Equator and this E is subjected to the trignometric correction referred to as above.
The Celestial Horizon is known as Kshithija. w is the maximum declination of the Sun, The Soorya Parama Kranthi. A is the latitude of the place.
The Eastern Point on the Celestial Horizon is Udaya Lagna 180 degrees from it is the Astha Lagna or the Descendant
Lord Buddha was aghast at the pain and suffering of this world. He turned his ire on the Lord and asked an important questions. How can the All-Merciful, the All-Compassionate create such a miserable world ?
How can it be that Brahm Could make a world so miserable And if All Powerful, leave it so; He is not good And if not All-powerful, He is not God !
Aurobindo answered
“A universe, eternally perfect, eternally manifesting the eternal perfection, will miss the joy of progress”.
If everything is perfect, Man, Earth, everything and was created as such initially, will we not miss the joy of progress? So then there were reasons why the Almighty created such an area of Evil & Chaos, deliberately flawing the perfection of His own material creation !