Dividing the arc between the Ascendant (Lagna) and the Midheaven (MC

Dividing the arc between the Ascendant (Lagna) and the Midheaven (MC) into three equal parts is a crucial step in certain systems of astrology, particularly Krishnamurthy Paddhati (KP). This division helps in determining the cusps of the eleventh, twelfth, and first houses in the birth chart. Here's how you can divide the arc between the Ascendant and Midheaven:

1.      Calculate the Longitudinal Distance: Determine the difference in longitudinal degrees between the Ascendant and the Midheaven. This is the arc you'll be dividing.

2.      Divide the Arc: Divide the longitudinal distance between the Ascendant and Midheaven into three equal parts. Since there are 30 degrees in each zodiac sign, you'll need to divide the total number of degrees by 3 to find the length of each division.

3.      Mark the Cusps: Starting from the Ascendant, mark the points where the divisions end. These points represent the cusps of the eleventh, twelfth, and first houses in the birth chart.

4.      Calculate the Degree of Each Cusp: Once you've marked the points for the house cusps, calculate the exact degree of each cusp. You can do this by adding the number of degrees in each division to the degree of the Ascendant.

For example, if the Ascendant is at 10° Aries and the Midheaven is at 25° Leo, the longitudinal distance between them is 135° (25° Leo - 10° Aries = 15° Leo; 15° Leo * 3 = 45°; 180° - 45° = 135°). Dividing 135° by 3 gives you 45°. Therefore, the cusps would be:

●       10° Aries (Ascendant)

●       25° Leo (Midheaven)

●       10° Scorpio (11th house cusp)

●       25° Capricorn (12th house cusp)

●       10° Pisces (1st house cusp)

These calculated points represent the cusps of the houses in the birth chart according to the division of the arc between the Ascendant and Midheaven into three equal parts.