In this post we are going to cover the calculation of sunrise and sunset. Sunrise takes place when the sun appears on the eastern horizon. The time for sunrise varies according to the location. For instance, the time for sunrise at a place located at 15 deg. North and 90 deg. East will be different from a place located at 45 deg. north and 90 deg. East. The formula for sunrise is: 1. tan (sun's declination) * tan( latitudes of place ) let us call this as X 2. Now find the sin inverse of X. The product is in degrees minutes. If the sun is in Uttarayana and the location is in northern hemisphere then. The product calculated above should be added in 90 deg. If however the birth is in Dakshinayana and the location is in northern hemisphere then the above product should be deducted from 90. The reverse holds true when the birth is in southern hemisphere. The product d...
Ascendant is the point of ecliptic on the eastern horizon at a specific time. Let us calculate the ascendant step by step To calculate this point tropical longitude of sun is required. Step 1: Calculate the tropical longitudes of the sun. Tropical longitude of sun = Nirayana longitudes + Ayanamsha. Step 2: Calculate the difference between the birth time (LMT) and a sunrise on a given day. This is called as Ishta kala . Step 3: Consider the sign in which the sun is in and the degrees he has traversed in that sign. ( Note: Consider the tropical longitudes of the Sun. ) Step 4: Calculate by direct proportion the expired portion of the sign the sun is in at the time of sunrise. Step 5: Calculate the unexpired portion by deducting the expired portion of the sign as calculated in the fourth step. Step 6: The duration as calculated in the 5 th step should be deducted from the Ista Kala . If duration of the sign is greater than Ista Kala then ig...
Before analyzing the horoscope we should be able to know the strength of every planet. Vedic astrology being the systematic science has a mathematical method of calculating the strength of planets. These strengths help to evaluate the magnitude of the event. For instance, if a combination indicating that the person will be a doctor is present in two similar horoscopes, their reputation as a doctor will be completely different depending upon the relative strength of the planets. In the coming posts we will learn to mathematically evaluate the relative strength of planets. These strengths are called as ' Shadbala ' or six fold strength. The strengths are divided into 6 main categories, they are as follows. 1. Sthanabala or Positional Strength 2. Digbala or Directional Strength 3. Kala bala or Temporal Strength 4. Chesta bala or motional Strength 5. Nai...
Saptavargaja Bala means the strength of the seven-fold division. For calculating the Saptavargaja bala 1. The relative strength of a planet either being in the sign of the friend or enemy is first ascertained. Moreover the temporary friendship or enmity is also ascertained. The combination of temporary and permanent relationship gives us more comprehensive combined relationship. This relationship is applied to sapatvargas and then the strength is ascertained. 2. Out of shodahsavargas Rasi, Hora, Drekkana, Saptamsa, Navamsa, Dwadashamsa and Trimsamsa together create saptavarga. For ready reference we are giving the table of Permanent Friendship and Temporary Friendship between the planets. Permanent Relationship (Naisargika Maitri) Planet Naisargika Mitra (Friend) Naisargika Shatru (Enemy) Sama (Neutral) Sun Moon Mar Jup Ven Sat Mer Moon Sun Mer None Mar Jup Ven Sat Mars Sun Moon Jup ...
In today’s post, we are continuing the example given for calculation of ascendant in the previous post . The horoscope depends on the two important points. They are the Ascendant and the Meridian Cusp It is known as Madhya Lagna or the cusp of the tenth house. Bhaskaracharya the great astronomer of India has defined it as the point where the meridian of the place cuts the ecliptic. Formula for the calculation of the tenth house 1. If the birth is after sunrise but before the mid-day then the formula is [1/2*Duration of the day] - Istakala 2. If the birth is after midnight but before sunrise then the formula is [1/2*Duration of the day] + [Sunrise - Birth time] 3. If the birth is after midday but before sunset then the formula is Istakala - [1/2*Duration of the day] 4. If the birth is after Sunset but before midnight then the formula is [1/2*Duration of the day] + [Birth time - Sunrise] ...
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