An astrocartography line is a place on Earth where one planet was angular — rising, setting, culminating, or at its lowest point — at the moment you were born. There are ten planetary bodies and four angles, which gives forty lines. This page is the reference: what each planet does, what each angle does, and how to combine the two.
Before the planets, learn the angles. The same planet behaves very differently depending on which angle it sits on.
Visibility and vitality. On a Sun line you are noticed — sometimes for confidence, sometimes for ego. Sun MC is the classic recognition line; Sun AC rebuilds a sense of self after a period of feeling invisible.
Belonging and emotional weather. Moon IC is the strongest "this feels like home" line in the whole system. Moon lines also raise sensitivity, so they can amplify homesickness as easily as comfort.
Thinking, speaking, writing, trading. Mercury AC sharpens your own mind; Mercury MC gets your words in front of people. Good for study, journalism, negotiation and languages. Also raises restlessness.
Love, beauty, money and ease. Venus DC is the partnership line in the strict sense — the Descendant governs one-to-one relationships. Venus AC makes you more attractive. Venus lines also reliably raise spending.
Drive, courage, conflict. Mars AC is the strongest of the four: more energy, more initiative, a shorter fuse. Excellent for athletes, founders and anyone stuck in inertia. Poor for people who already argue too much.
Expansion, luck, opportunity, generosity. Jupiter MC is the single most requested career line. Jupiter also expands what is already there, including expenses and waistlines. It opens doors; it does not do the work.
Structure through restriction. Saturn lines are widely reported as lonely and effortful, and equally widely reported, years later, as the place where real competence was built. A Saturn line is for constructing something, not for recovering.
Disruption, freedom, sudden change. Uranus lines break stuck patterns — often without asking first. Useful when you want to be shaken loose, destabilising when you want a quiet decade.
Dissolution, imagination, spirituality, escapism. Neptune lines soften boundaries: wonderful for art, music, retreat and healing, risky for contracts, budgets and anything requiring hard edges.
Intensity and transformation. Pluto lines bring power dynamics to the surface and force what was buried into the open. Deeply effective for deliberate change, punishing for people arriving already depleted.
Not planets, but often mapped. The North Node line points toward growth that feels unfamiliar; the South Node line feels comfortable, familiar, and easy to stagnate in.
Read a line as a sentence: planet + angle. Some frequently searched combinations:
Line influence is not binary. It is strongest directly on the line, still clear within about 100 km (60 miles), and noticeably weaker past roughly 300 km. If a line "did nothing", the two usual explanations are distance and birth-time error. The angles move about one degree every four minutes of clock time, so a birth time that is an hour out relocates your entire angular set by hundreds of kilometres.
Vertical lines only cover a limited set of longitudes. Parans are horizontal latitude bands where two planets are simultaneously angular. They are subtler than a direct line but they cross every longitude, which means everyone has usable parans near home. If no vertical line reaches anywhere you can move to, parans are the answer.
Forty vertical lines: ten planetary bodies multiplied by four angles (AC, MC, DC, IC), plus horizontal paran lines.
There is no universally best line, only a best line for a stated goal. Jupiter MC for career, Venus DC for partnership, Moon IC for belonging, Sun AC for identity.
No, but they are demanding. Both are associated with difficulty in the short term and durable growth over years. Neither is a good choice for someone arriving exhausted.