The Decans are 36 groups of small constellations which rise consecutively on the horizon throughout each earth rotation. The rising of each decan marked the beginning of a new decanal "hour" of the night.
Because a new decan also appears heliacally every ten days (that is, every ten days, a new decanic star group reappears in the eastern sky at dawn right before the Sun rises, after a period of being obscured by the Sun's light), the ancient Greeks called them dekanoi (pl. of dekanos) or "tenths".
1st Scorpio Decan:
Scorpios born between October 23 - November 2
People born on these dates are the most sensual, and at times, sexual of the Scorpios. They tend to involve themselves in seeking pleasure in their earlier life.
The planetary ruler is Mars for those born between 23rd October and 2nd November. The person born under this Decan would have power that’s equivalent to two Scorpios, possessing stronger characteristics of this Sign. Mysterious as they are, these people are resourceful, magnetic and extremely courageous. By nature, they are secretive, but they also love the limelight, though secretly. They are passionate to the core, and are blessed with great zeal and energy, thanks to their planetary ruler Mars. When in love, they are completely dedicated and loyal to their partners and they also demand an equal amount of fervent love from their partner. They detest betrayal, and it is the biggest game-breaker for them. In a negative reflection, these people can get very vindictive and vengeful.
2nd Scorpio Decan:
Scorpios born between November 3 - November 11
These Scorpios are the most driven toward understanding the meaning to life, and tend to be the most spiritual of the Scorpios. They are idealistic and wish to truly understand themselves.
The planetary ruler is Jupiter for those born between 3rd November and 12th November. Jupiter instils some very nice characteristics in these people. Apart from being the true blue Scorpio, these people are also very intelligent and ambitious. Additionally, given their sovereign drive, their aspirations become a reality soon. Artistic and romantic, they are faithful and devoted to the core, and their generousness makes them quite popular among their circle. Regardless of many hurdles, these people move on in their lives as Jupiter lends them with enormous luck power. Jupiter is a powerful force in the lives of these Scorpios.
3rd Scorpio Decan:
Scorpios born between November 12 - November 22
Due to the influence from the moon, these Scorpios are the most sensitive, and often need to learn to bring their emotions into balance. They are highly caring and family oriented.
The planetary ruler is Moon for those born between 13th November and 22nd November. Moon typically rules the conscious mind and the subconscious mind, and makes a person very attractive. It’s no surprise that a Scorpio-born tends to be quite popular and have a good public standing.
Charming as they are, Scorpio-born wishes to be set free, and have a terrific will-power. People born in this Decan value Justice. By their very nature, the people born under this influence are sensitive and also caring. In their relationships, particularly, they work very intensely and has a passion in everything they do. To make their relationships more happy and fruitful, they will even go to the extent of self-sacrificing. They love to look after and take care of people who are close to them. Nevertheless, they are very sensitive in nature and can get hurt very easily. And once they are hurt, they get really dangerous. They hardly will demonstrate their pain feelings openly; they hold on to their past grievances and will never fail to take vengeance.
source: http://www.ganeshaspeaks.com/scorpio/scorpio-decans.action
