MB Free Nakshatra - Version 1.40 MB Free Nakshatra is a nakshatra or birth star calculator software based on Vedic Astrology. This program calculates the birth star or the constellation the moon was present in at the time of birth. It describes the mental attitude and the planetary periods (dashas). This program tells us in detail the characteristics and features of people born under a particular nakshatra. This is different from the birth star calculated in western astrology. This helps you understand your positive and negative traits, thus helping you improve your personality.