This kind of strength applies only to the planets, not to the luminaries. The Cheshta Bala of the Sun is identical to his Ayana Bala; Cheshta Bala of the Moon is her Paksha Bala.
The five planets (Mars ... Saturn) may have 8 different types of motion. They can be in direct motion (slow, normal or accelerated), be stationary or retrograde. Another kind of motion is the introgression into the next/previous sign of the zodiac in accelerated of retrograde motion.
Another kind of retrograde motion is Anuvakra. A planet is in Anuvakra motion if he is retrograde and enters the previous sign in his retrograde motion. Anuvakra planets get 50% of strength (30 Virupas).
The motion is called Mandatara if the speed is slow. Mandatara motion gets 25% of strength (15 Virupas).
The motion is called Manda if the speed is medium. Manda motion gets 50% of strength (30 Virupas).
Normal motion is called Sama. A planet is in Sama motion if his speed is near the average. Sama motion gets 7.5 Virupas and is the weakest of all motions.
Fast direct motion is called Chara. Chara planets get 75% of strength (45 Virupas).
A special Chara motion is Atichara. A planet is in Atichara motion if he is in Chara and enters the next sign of the zodiac. Atichara planets get 50% of strength (30 Virupas).
|Vakra||60||< 0||Must not enter previous sign|
|Anuvakra||30||< 0||Like Vakra. Planet enters previous sign in retrograde motion|
|Vikala||15||< 10% of average speed||-|
|Mandatara||15||Between 10% and 50% of average speed||-|
|Manda||30||Between 50% and 100% of average speed||-|
|Sama||7.5||Between 100% and 150% of average speed||-|
|Chara||45||> 150% of average speed||Must not enter next sign|
|Atichara||30||> 150% of average speed||Like Chara. Planet enters next sign in direct motion|