Decan 1 · 1–10°
Sub-ruler: Saturn
Double Saturn — the most disciplined and most self-denying.
Roughly the first ten days of the sign.
December 22 – January 19 · Earth · Cardinal · ruled by Saturn
Ambition, structure and playing the long game.
Calculated, not approximated
Every other site prints "December 22 – January 19" with a note that dates "may vary by a day". They vary because the Sun crosses the boundary at a specific moment, and that moment shifts each year — but it is not unknowable.
The figures above are computed: the Sun enters Capricorn when its ecliptic longitude reaches 270°, and that crossing is found to the minute. If you were born near a boundary, this is the answer you actually needed.
Rarely covered
Each sign divides into three ten-degree segments, and each has its own sub-ruler. Two people can both be Capricorn and read as noticeably different because they fall in different decans — roughly, early, middle or late in the sign.
Decan 1 · 1–10°
Double Saturn — the most disciplined and most self-denying.
Roughly the first ten days of the sign.
Decan 2 · 11–20°
Warmer and more sociable. Ambition with charm attached.
Roughly the middle ten days of the sign.
Decan 3 · 21–30°
Strategic and analytical. Plans several moves ahead.
Roughly the last ten days of the sign.
Plans in decades and executes without needing encouragement along the way.
Measures worth by achievement, and struggles to rest without guilt.
Capricorn is the one cardinal earth sign — and that pairing is the whole explanation. The element sets temperament: earth signs test everything against what can be touched. The modality decides what happens when circumstances change: cardinal signs start the change themselves.
There are exactly twelve combinations of four elements and three modalities, and each is occupied by one sign. That is why no two signs are interchangeable, and why Capricorn cannot be swapped for the other earth signs without changing the meaning.
Reserved, ambitious and dependable. Commitment is demonstrated, not stated.
Composed and quietly determined. Builds slowly and does not explain herself.
Worth saying plainly: nothing in astrology assigns different meanings to a sign by gender. These descriptions reflect how the traits are conventionally written about, not a separate system — and plenty of people will recognise themselves in the other one.
Undemonstrative but dependable. Commitment is shown by showing up, not by saying so.
Undemonstrative and completely reliable. Turns up with a solution, not sympathy.
Built for institutions and long climbs. Impatient with people who need motivating.
Management, institutions, architecture, law, finance — anywhere a long climb pays.
The most disciplined saver, with a tendency to under-enjoy the results.
Serious and self-sufficient early. Often described as an old soul, and needs permission to play.
Responsible, structured and reliable. Risks valuing achievement over affection.
Bones, knees and skin — Capricorn rules the skeleton, the structure of the body.
Ranked by the angle between the two signs on the wheel — the same geometry astrology uses for aspects. Signs 120° apart share an element and form a trine; 90° apart is a square. Nothing here is a matter of opinion.
| With | Aspect | Angle | Score | Element |
|---|---|---|---|---|
| ♉ Taurus | Trine | 120° | 88% | Earth |
| ♍ Virgo | Trine | 120° | 88% | Earth |
| ♏ Scorpio | Sextile | 60° | 82% | Water |
| ♓ Pisces | Sextile | 60° | 82% | Water |
| ♑ Capricorn | Conjunction | 0° | 78% | Earth |
| ♋ Cancer | Opposition | 180° | 75% | Water |
| ♈ Aries | Square | 90° | 62% | Fire |
| ♎ Libra | Square | 90° | 62% | Air |
| ♐ Sagittarius | Semi-sextile | 30° | 58% | Fire |
| ♒ Aquarius | Semi-sextile | 30° | 58% | Air |
| ♊ Gemini | Quincunx | 150° | 55% | Air |
| ♌ Leo | Quincunx | 150° | 55% | Fire |
Michelle Obama, Denzel Washington, Isaac Newton, David Bowie
Lists like this are the weakest evidence in astrology and the most quoted. With roughly a twelfth of all people in any sign, every sign has impressive members — picking four of them proves nothing. Read it as trivia, not as support.
December 22 – January 19 as usually published. In 2026 specifically the Sun enters on 21 December pm31 20:54 UTC and leaves on 20 January am31 01:43 UTC.
By aspect, Taurus, Virgo, Scorpio. Those sit at the easiest angles on the wheel — but sun signs are one factor of many, and a difficult angle describes friction rather than failure.
A ten-degree third of the sign with its own sub-ruler: Saturn, Venus, Mercury. It is why two people of the same sign born three weeks apart can read quite differently.
Bones, knees and skin — Capricorn rules the skeleton, the structure of the body.
Not in the system itself — astrology assigns no gendered meaning to a sign. The separate descriptions above reflect convention in how signs are written about, nothing more.