Moon lines
The four lines on your map where Moon was on an angle when you were born: overhead, underfoot, rising and setting.
Moon in astrocartography
The Moon is where you feel at home: mood, sleep, appetite, family, the routines that hold a week together and the sense of belonging somewhere. It is also, by old tradition, the public, meaning the crowd as a whole and not the people in charge of it. Each of its four lines takes one side of that. The MC makes you known and liked by the public, the IC is where you settle and put down roots, the Ascendant changes how you feel in your own skin, and the Descendant brings the people who become family.
How your Moon lines sit against your Sun lines comes down to the phase you were born under. If you were born near a new Moon, the two sets run close beside each other; near a full Moon, your Moon MC lies close to your Sun IC, and the other way round. Moon lines are felt in ordinary days more than in highlights, so they show over weeks of routine, sleep and shopping, and hardly at all in a single afternoon.
Moon MC line: public feeling
The Moon overhead makes you visible through care, mood and belonging rather than achievement. Work with the public, with families, food, housing or anything people need daily tends to flourish.
Moon IC line: the deepest home
This is the classic line for feeling at home. Roots go down fast, domestic life carries real weight, and memories formed here stay with you.
Moon ASC line: sensitivity on the surface
With the Moon rising, feelings sit close to the skin. You read rooms quickly, respond to people warmly and are responded to in kind, and your body registers the place: sleep, appetite and mood all shift.
Moon DSC line: emotional partnership
The Moon setting draws people who want to care for you and be cared for. Relationships here are intimate, domestic and protective, often quickly so.
Where the lines run
Moon's declination, how far north or south of the celestial equator it sits, decides where its rising and setting lines stop: at 90° of latitude minus the declination. For births between 1930 and 2025 it ran from 28.7° S to 28.7° N, so in some charts those lines end as close to the equator as about 61° of latitude, north or south. Beyond that point Moon didn't rise or set at all on the day you were born, while the MC and IC lines carry on to the poles.