Basic
introduction about nakshatras |

Deriving
the nakshatra formula |

Find
nakshatra of a planet |

All
about nakshatras |

__Contents:__

In Hindu Mythology, Nakshatras are considered to be 27 wives of moon and they are also the daughters of Daksha Prajipat, whom Lord Brahma has given the duty to help the world. In Hindus the calendar is based on the moon signs. The important festivals like “Holi” and “Diwali” are celebrated based on the moon’s Nakshatras.

The Zodiac is divided into 360 degrees and since there are 27 Nakshatras in the total so we divide 360 Degrees into equal divisions.

For example, 360 / 27 = 13 Degrees and 20 Minutes.

Mathematical Analysis to find a Nakshatra:To find a Nakshatra a planet falls in

N = {(Rasi * 30) + (Degrees of the Planet)} / 27 + 1

So each Nakshatra is of 27 Divisions.

Now each Nakshatra is divided into 4 parts,

So each pada (part) of a Nakshatra is equal to 13 D 20 M / 4 = 3 D 20 M (Where D is Degrees and M is Minutes)

Some terms which will be used are ‘N’ = Nakshatra; R = Rasi; D = Degrees; M = Minutes; P = Pada (part).

Thus, 27 N = 12 R. Therefore, R = 9/4 N...(i)

Also, as we know that Nakshatra is also divided into 4 parts i.e. N = 4P …(ii)

Thus, R = 9 P …(iii)

As we know that 30 D form a Rasi which means 30 D = 9 P wide (iii)

Now, D = 3 /10 P …(iv)

Now we consider the longitude of the planet to be broken down into ‘R’ and ‘D’.

I.e. if in the horoscope of a person the sun is say 66 Degrees.

Then Sun has traversed 2 Rasis and 6 Degrees in the Zodiac.

For getting the total number of Nakshatras padas we will add (iii) and (iv),

Thus N = (9 R + 3/10 D) / 4 …because N = 4 P

To this we will add one if we don’t consider the fraction (that means the star has already crossed N Nakshatras and has traversed the fraction in the next Nakshatra)

So our

FormulaisN = [{9 * (Rasi traversed) + 3/10 * (Degrees)} / 4] + 1….(v)Here N is the Number of Nakshatra. I.e. 1 for Aswini , 2 for Bharani , …….27 for Revati

Example,

Suppose the Sun is at 66 Degrees which is equal to 2 R + 6 D (for we know that 30 Degrees is equal to a Rasi)

Now applying the formula,

N = [{9*(2) + 3/10 (6)} / 4] + 1. …Replacing ‘R’ by 2 and 6 by ‘D’

N = [{18 + 18/10} / 4] + 1

N = [{18 + 1.8} / 4] + 1

N = {19.8 / 4} + 1 ….Now we will leave the fraction and keep the exact number divisible by 4 and also lesser than that number

N = {16 / 4} + 1

N = 4 + 1 = 5

Thus, we say that the planet is in Mrigasira Nakshatra.

Here is a table, which shows some characteristics about the Nakshatras.

S.No.NakshatraLongitudeRulerGanaGanaPurposeNameSex1 Aswini 13 D 20M Ketu Deva Horse Dharma Chu, Che, Co, La Male 2 Bharani 26 D 40M Venus Manushya Elephant Artha Li, Lu, Le, Lo Male 3 Krittika 40 D Sun Rakshasa Sheep Kama Aa, Ee, U, A Female 4 Rohini 53 D 20M Moon Manushya Serpent Moksha O, Va, Ve, Vo Male 5 Mrigasira 66 D 40M Mars Deva Serpent Moksha Va, Vo, Kaa, Ke Neutral 6 Ardra 80 D Rahu Manushya Dog Kama Ko, Gha, Jna, Cha Female 7 Punarvasu 93 D 20M Jupiter Deva Cat Artha Kay, Ko, Ha, He Female 8 Pushya 106 D 40M Saturn Deva Sheep Dharma Ho, Ha, Ho, Da Male 9 Aslesha 120 D Mercury Rakshasa Cat Dharma Dee, Do, Day, Do Male 10 Magha 133 D 20M Ketu Rakshasa Rat Artha Ma, Me, Moo, May Male 11 Purva- Phalguni 146 D 40M Venus Manushya Rat Kama Mo,Ta,Te,To Female 12 Uttara- Phalguni 160 D Sun Manushya Cow Moksha Tay, To, Pa, Pe Male 13 Hasta 173 D 20M Moon Deva Buffalo Moksha Pu, Sha, Na,Tha Female 14 Chitra 186 D 40M Mars Rakshasa Tiger Kama Pay, Po, Ra, Re Female 15 Swati 200 D Rahu Deva Buffalo Artha Ru, Ray, Ra, Tha Male 16 Visakha 213 D 20M Jupiter Rakshasa Tiger Dharma Thee, Tho, Tay, Tho Male 17 Anuradha 226 D 40M Saturn Deva Deer Dharma Na, Ne, No, Nay Female 18 Jyestha 240 D Mercury Rakshasa Deer Artha No, Ya, Yee, Yoo Male 19 Mula 253 D 20M Ketu Rakshasa Dog Kama Yay, Yo, Baa, Dha Neutral 20 Purvashada 266 D 40M Venus Manushya Monkey Moksha Bu, Dhae, Bha, Dha Male 21 Uttarashada 280 D Sun Manushya Cow Moksha Bay, Bo, Ja, Je Male 22 Sravana 293 D 20M Moon Deva Monkey Artha Ju, Jay, Jo, Gha Female 23 Dhanista 206 D 40M Mars Rakhsas Lion Dharma Gaa, Gee, Go, Gay Female 24 Satabhista 320 D Rahu Rakshsas Horse Dharma Go, Sa, Se, So Neutral 25 Purvabhadrapada 333 D 20M Jupiter Manushya Lion Artha Say, So, Da, Dee Male 26 Uttarabadrapada 346 D 40M Saturn Manushya Cow Kama Du, Tha, Jna, Thae Female 27 Revati 360 D Mercury Deva Elephant Moksha De, Do, Cha, Che Female