Generally, in the Vedic Astrology, twenty seven Nakshatras (Constellations) are considered in the Zodiac. However, sometimes 28th Nakshtra is also used, which is called ‘Abhijit Nakshatra’.
In the system, in which Zodiac of 360° has been divided into Twenty Seven Nakshatra, each Nakshatra (Constellation) gets area of 13°20´ each, having four quarters of 3°20´. However, Abhijit Nakshtra is carved out of last quarter of Uttarashada and first 4 ghatis of Shravana (1/5 portion of Shravana), without disturbing areas allotted to other twenty five Nakshatras (Constellations). Thus from 6°40´ of Capricorn to 10°53´20´´ of Capricorn is measure of ‘Abhijit Nakshtra’.
Abhijit Nakshatra is used in the Chakra system of Astrology. Chakras e.g. Sarvatobhadra Chakra, Kot Chakra, Koorma Chakra are prepared and analysed on the basis of Twenty Eight Nakshatras, hence in all these Abhijit Nakshatra is necessary to be considered. .