Chittirail chittirai nal

[Guest guest]

Srimathe Ramanujaya Nama:

 

Dear Kasturi Varadarajan,

The lunar and solar days and their interplays due to the relative

movements of the Sun and the Moon are complicated and requires lot of

astrological mathematics.

In simple words, the lunar orbit of 360 degrees is divided into

sections of 12 and a small fraction of degrees. A lunar day is reckoned as

the interval or duration in which the angle between the sun and moon

changes by 12 and odd degrees. It is also called a tithi. Each of these

sections comprises of one reputed star like Ashvini , Bharani, Krittika

etc. Since there are 27 stars, this will roughly take 28 to 30 solar days.

Now a lunar month comprises of two fortnights, bright and dark, and

starts on the shukla prathama and ends with krishna Amavasya. When the

angle between the SUn and the Moon is Zero degrees it is Amavasya. When

that angle is 180 degrees it is Poornima.

The naming is done based on the star that usually and most probably occur

on the Poornima of that month. The lunar year is reckoned from chaitra

sukla prathama or chandramana yugadi to PhAlguNa krishna Amavasya.

The month nomenclature is by the name of the star that will most probably

find the Moon in coincidence.

 

Chaitra masam chitra(star) poornima

Vaishakha masam vishAkhA star ..

Jyeshtha masam Jyeshtha star or Kettai ..

AshAdha .. Uttarashadha or uttiradam

SrAvaNa .. SravaNa

BhAdrapada .. UttarabhAdrapada or uttirattadi

Ashvayuja Ashvini

kArtika Krittika or kiruttihai

MArgashira .. Mrigashira

Pousha masam .. Pushya star

MAgha masam MakhA star

PhAlguNa masam Uttaraphalguni or uttira star

 

There are so many changes from time to time in practice or reality because

of Earth's precession which takes 26,000 years and then the almanacs dont

match. So you have to take help of the astrologers contemporary almanacs

and celebrate our ceremonies or whatever.

I hope I have been able to give some idea about this.

 

Adiyen Dasan

M N Ramanuja