The nakshatras are the apparently fixed bodies in the Zodiac, where the planetary system moves with them placed in the background.
Among the Rasi and the nakshatras, the former is overlorded by the Sun, whereas the latter is overlorded by Moon. This implies that the Rasi shows the environment we would be placed with at different times in our life and what we get out of it, on the other hand, the nakshatras govern the different state of mind, we shall be having at various times. Even the actual events are important in our life, taking a person-centric view point; our reactions to them also matter equally. Hence the study of the nakshatras is well warranted.
There are four padas (quarters) of each nakshatra, each measuring 3d 20m making the total duration of the nakshatra to be 13d 20m. Thus there are 108 padas across the zodiac and each map to 1 Navamsa. However, since the duration of 1 sign is 30 degrees, the nakshatra cannot be mapped exactly on the Rasis.
However, it is interesting to see that 9 nakshatras can be mapped to 4 Rasis. From this we can derive the basis of dividing the zodiac of 12 Rasis and 27 nakshatras into 3 parts each measuring 120 degrees. This is the basis for the Navatara Chakra, where the nakshatras are divided into three groups of 9 each, starting either from the Janma or Lagna Nakshatra.
Fixed Nakshatras
Rohini, Uttar-phalguni, Uttar-ashadha and Uttar-bhadrapada are supposed to be fixed nakshatras and they are favourable for activities which are related to establishing something permanent such as coronations, laying the foundations of cities, sowing operations, planting trees. Soft Nakshatras Chitta, Anuradha, Mrigasira and Revati are soft nakshatras. They are favourable for soft or artistic activities such as wearing new apparel, learning dancing, music and fine arts, sexual union and performance of auspicious ceremonies.
Light Nakshatras
Ashwini, Pushya, Hasta and Abhijit are light nakshatras, and they are favourable for light and sportive activities such as putting ornamentation, pleasures and sports, administering medicine, starting industries and undertaking travels.
Sharp Nakshatras
Moola, Jyestha, Ardra and Aslesha are sharp nakshatras in nature and they are favourable for sharp, piercing and painful activities such as incantations, invoking spirits, for imprisonment, murders, and separation of friends.
Mobile Nakshatras
Sravana, Dhanishta, Satabhisaj, Punarvasu and Swati are mobile nakshatras and they are auspicious for mobile activities such as acquiring vehicles, for gardening and for going on procession.
Dreadful Nakshatras
Purva-phalguni, Poorvashadha and Poorvabhadra, Bharani and Makha are dreadful nakshatras and they are favourable for nefarious schemes, poisoning, deceit, imprisonment, setting fire and other evil deeds.
Mixed Nakshatras
Krittika and Visakha are mixed nakshatras and during their influences, works of day-to-day importance can be undertaken.
Inauspicious Nakshatras
Beginning from the third quarter of Dhanishta and ending with the last part of Revati, the time is held to be unsuitable for any kind of auspicious work. This period goes under the special name of Nakshatra Panchaka and when these stars are ruling, one should avoid journey towards the south, house repairing or renovation, collecting fuel and cattle fodder or acquiring cots and beds.
Auspicious Nakshatras
Of all the twenty-eight constellations, the pride of place appears to have been given to Pushya, the 8th star.
