ASTROLOGY IS BASED ON ZODIAC. ACCORDING TO IMAGINARY MEASUREMENT,THE ZODIC IS OF 360 DEGREES WHICH IS DIVIDED INTO 12 PARTS.
EACH PART IS DIVIDED INTO 30 DEGREE EACH. THESE DIVISIONS ARE KNOWN AS SIGNS RANGING FROM ARIES TO PISCES.
EACH OF THESE SIGN COMPRISES OF TWO AND A QUARTER CONSTELLATION AND THERE ARE 27 CONSTELLATION IN ALL. IN HINDI THESE ARE CALLED AS NAKSHTRAS.