The second decan of Sagittarius

The middle ten degrees of Sagittarius, where the search acquires urgency and a willingness to fight for what it has found.

The technical picture

Degrees: 10 to 20 degrees of Sagittarius
Sun here roughly: December 1 to December 11. The boundary shifts by about a day with the leap cycle, so a birthday within a day of either end needs a calculated chart.
Sign ruler: Jupiter, over all three decans
Traditional face ruler: Moon, from the Chaldean order
Modern triplicity ruler: Mars, by way of Aries
Do they agree: No. The two traditions disagree here, as they do on twenty-seven of the thirty-six decans.

The core of this decan

Browsing stops in the middle third of Sagittarius. Aries colors these degrees in the modern scheme, and the effect is that the sign's appetite acquires a point: a cause, a position, something worth going at. Planets here are more forceful than the opening decan and considerably faster to commit. What was curiosity becomes conviction, and the conviction wants to act.

How it differs from the rest of the sign

The first decan of Sagittarius explores. This one campaigns. That difference shows up most clearly in disagreement: the opening decan will happily consider the other view, and this one will argue with it. Set against the third decan, which is more concerned with how the belief is presented and received, this one cares only whether it is right and whether anything is being done about it.

The two rulers

The traditions offer very different readings and both hold. Modern practice gives these degrees to Mars, through Aries, which accounts for the fight and the speed. The face system gives them to the Moon. That Moon is unexpected and it matters: it says the conviction has feeling underneath it rather than only logic, and it explains why an argument here can become personal much faster than the subject warrants.

Where the friction is

Belief plus urgency makes a poor listener. A planet in these degrees can commit at speed to a position and defend it before it has been tested, and the Moon underneath means backing down feels like a loss of something more than an argument. Certainty of this kind is also difficult to distinguish, from inside, from having thought the matter through.

Working with it

Slow the commitment instead of the enthusiasm, which are different things and this decan tends to conflate them. Asking what would change your mind, before the position hardens, is worth a great deal here. And notice when an argument has stopped being about the subject, because with the Moon here it usually stops early.

Questions to sit with

What would change your mind about the thing you are most sure of?
When did an argument stop being about the subject?
Which position did you take before you had tested it?

The other decans of Sagittarius

The rulers involved

Start here

Find which decan your own planets fall in.

Educational and reflective. This describes tendencies, not predictions, and is not medical, legal, financial, or psychological advice.

Drafted from an expert brief, reviewed by a practising astrologer with 30 years of experience, and grounded in computed chart data.