The Tribes and Castes of the Central Provinces of India,...

The Sankrānts do not mark the commencement of the Hindu months, which are still lunar and are adjusted to the solar year by intercalation. It is probable that long before they were able to measure the sun’s progress along the ecliptic the ancients had observed that of the moon, which it was much easier to do, as she is seen among the stars at night. Similarly there is little reason to doubt that the first division of time was the lunar month, which can be remarked by every one. Ancient astronomers measured the progress of the moon’s path along the ecliptic and divided it into twenty-seven sections, each of which represented roughly a day’s march. Each section was distinguished by a group of stars either on the ecliptic or so near it, either in the northern or southern hemisphere, as to be occultated by the moon or capable of being in conjunction with it or the planets. These constellations are called nakshatras. Naturally, some of these constellations are the same as those subsequently chosen to mark the sun’s path or the signs of the zodiac. In some cases a zodiacal constellation is divided into two nakshatras. Like the signs, the nakshatras were held to represent animals or natural objects. The following is a list of them with their corresponding stars, and the object which each was supposed to represent:5