Birthdays

Born on January 13

Sun sign
Capricorn — every year, 1940–2030
Sun degrees
22°09′ Capricorn – 23°35′ Capricorn · noon UTC, 1940–2030
Decan
third decan of Capricorn — traditional ruler Mercury
This year
January 13, 2026: Sun 23°17′ Capricorn · Moon in Scorpio at noon UTC

Precision gets called cold by people who’ve never been on the receiving end of it done well. January 13 — Capricorn, third decan, Mercury-toned by tradition — treats exactness as a form of respect: your name spelled correctly, your allergy remembered, the thing you mentioned once handled without follow-up.

Exactness as affection

The Capricorn Sun keeps its promises; the Mercury decan keeps them to the letter. January 13 people are the appointment kept to the minute, the quote checked before it’s repeated, the friend whose advice is specific enough to act on. There’s a moral seriousness under the detail-work — this date believes, without ever saying so, that getting small things right is how you prove you can be trusted with large ones. Their word functions like a signed document.

High standards, both directions

In love, that makes for a partner of rare consistency: what was promised happens, what was said is meant, anniversaries do not sneak up. The catch is that January 13 extends its own standard outward and feels genuine pain when others are careless with facts, time, or words. At work, this is the person you want on contracts, code, surgery, or copy — any field where the difference between almost right and right is the whole job. Sloppy environments are a daily insult; precise ones feel like home. Given the choice, this date takes the smaller job done exactly over the bigger one done loosely, every time.

The red pen problem

The friction: correction feels like care from inside and criticism from outside. Not every misremembered date needs amending, and a partner’s story does not improve when its timeline is fixed mid-telling. The growth is asking one silent question first — does this error actually cost anything? — and letting the free ones go.

Precision deserves precision: a date fixes the Sun, and nothing about the Moon or rising sign, which shift by the hour. Feed the birth chart calculator a birth time and it computes the rest to the minute — the kind of accuracy this birthday can respect.

The date, answered

What zodiac sign is January 13?

Capricorn. In every year from 1940 through 2030, the Sun is in Capricorn on January 13 — between 22°09′ Capricorn and 23°35′ Capricorn at noon universal time.

Is January 13 on the cusp?

No. Across 1940–2030 the Sun sits at least 6.4° inside Capricorn on January 13, so the sign never changes with the year.

What decan is January 13?

The third decan of Capricorn (20°–30°), whose traditional ruler is Mercury.

What degree is the Sun on January 13?

Between 22°09′ Capricorn and 23°35′ Capricorn at noon universal time, depending on the year — the calendar drifts about a quarter degree per year against the Sun and resets on leap years. Your exact degree needs your birth date, year, and time.

The date gives you the Sun. The rest takes a chart.

Moon, rising, houses, aspects — computed from your exact birth moment, on your device, free.

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