The most difficult as­trol­o­gy riddles

The current list of 88 constellations recognized by the International Astronomical Union since 1922 is based on the 48 listed by Ptolemy in his Almagest in the 2nd century, with early modern modifications and additions In 1930, the boundaries between the 88 constellations were devised by Eugène Delporte along vertical and horizontal lines of right ascension and declination.

The Chinese zodiac is a classification scheme that assigns an animal and its reputed attributes to each year in a repeating 12-year cycle. These include: mouse, ox, tiger, dragon, rabbit, snake, horse, sheep, monkey, rooster, pig, dog

The zodiac system was developed in Babylonia, some 2,500 years ago. Since then, the zodiacal signs and the constellations associated with them are drifting apart due to the precession of equinoxes with a clockwise (westward) precession of 1.4 degrees per century. For Western astrology, this means that the tropical sign of Aries currently lies somewhere within the constellation Pisces.