Each indication of the zodiac is set aside 30 degrees (out of a 360 degree circle). That 30 degrees is partitioned into 10 degrees 3 times. Each of those 10 degrees is called a Decan.
Each indication of the zodiac is set aside 30 degrees (out of a 360 degree circle). That 30 degrees is partitioned into 10 degrees 3 times. Each of those 10 degrees is called a Decan.