The position, stated first
Measured at noon across the years from 1930 to 2035, the Sun on 14 December falls between roughly twenty one and a half and twenty three degrees of Sagittarius. Every one of those values sits inside the third face, which begins at twenty degrees and ends at thirty.
The variation across the whole period is a little over one degree, and it comes from the mismatch between the calendar year and the orbit. Ordinary years push the position forward slightly and each leap day pulls it back, so the pattern oscillates instead of drifting.
That stability is why a face can be quoted for this date with confidence, while dates sitting on a boundary need the year and the hour before any answer is possible.
Two rulers with opposite reputations
Jupiter is the traditional ruler of Sagittarius and is associated with widening: travel, doctrine, generosity and the taste for a bigger frame. Saturn takes the last face of the sign under the Chaldean order and is associated with the opposite motion, meaning limit, duration, structure and the cost of things.
The pairing is not an accident of one scheme. Counting the faces in sequence from Aries places Saturn here for structural reasons rather than symbolic ones, which is part of why the Chaldean order has survived alongside newer arrangements.
Older writers did not treat the mixture as a contradiction so much as a sequence. A sign that begins in appetite is described as ending in discipline, with the final ten degrees standing for what survives once the enthusiasm has been tested.
The triplicity scheme substitutes Leo for Saturn here and produces a warmer reading altogether. When a source quotes a decan ruler without naming its scheme, this is usually the disagreement behind it.
What is tradition and what is measurement
Two different sorts of claim are in play on any page like this. That the Sun stood near twenty two degrees of Sagittarius on 14 December is arithmetic, checkable against an ephemeris and identical whoever runs it.
That a Saturn face makes somebody sober or hard working is a reading, handed down and revised, and it cannot be checked the same way. It is worth knowing what the tradition holds, and worth being clear that holding is all it is.
This site keeps the two apart deliberately. Positions are computed and stated, interpretations are attributed to the tradition that carries them, and nothing at all is offered about how a life will go.
The distinction also explains why the same face can be described in two ways without either account being wrong. A reading is a way of talking about a position, and different lineages talked about it differently. The position underneath has not changed since the ephemerides began.
The placements a date leaves untouched
The Moon can be in either of two signs on this date, sometimes three, because it crosses roughly half a sign every day and a boundary may fall at any hour. Nothing about the date narrows that down.
The rising sign is unconstrained. Twelve signs pass the horizon in twenty four hours, so an hour of birth and a birthplace decide it, and every house position in the chart follows from the same two facts.
Seen against that, the Sun is the most widely shared element in a chart rather than the most personal. The widget above computes the exact solar degree for your own details and reports how far it stood from the nearest sign boundary.
Questions people ask about this
What sign and decan is 14 December?
Sagittarius, in the third decan from twenty to thirty degrees. The Sun sits near twenty two degrees, well clear of both edges of the band.
Why does this date have two rulers?
Because a sign ruler and a face ruler are separate layers. Jupiter rules Sagittarius as a whole and Saturn rules its final ten degrees in the Chaldean order.
Do Jupiter and Saturn conflict here?
The tradition describes them as opposite in temperament and reads the face as expansion meeting limit. Whether that says anything about a person is interpretation rather than measurement.
Is 14 December ever Capricorn?
No. The Sun does not reach Capricorn until around 21 December, which is roughly seven degrees of movement beyond this date's position.
How much does the degree change between years?
Only about a degree and a bit across the last century at noon, because the leap year rule cancels the drift rather than letting it build up.
What does the widget add beyond the sign?
The exact degree for your year, hour and birthplace, the face that degree falls in, and the distance from your Sun to the nearest sign boundary.