Learn Astrology

The long reads that own a whole topic.

• How to Read Your Birth Chart, Step by Step Eight steps in a fixed order, a worked example computed from real ephemeris data, and the point at which you should stop reading.
• The Planets in Astrology What each of the ten bodies is astronomically, how fast it moves, what the tradition reads it for, and where the personal chart ends and the birth cohort begins.
• Transits and Retrogrades Explained What a transit measures, why speed decides which ones anyone notices, the return cycles with their real orbital arithmetic, and what a retrograde does to the length of a contact.
• How to Use Astrology Tools Responsibly The astronomy is checkable. The meaning is a borrowed language. Almost every problem with astrology comes from mixing the two up.
• Aspects Explained: Conjunction, Square, Trine, Opposition, Sextile What an aspect actually measures, the five classical angles and the minor ones, how orb allowances work, and why the easy aspects are not the good ones.
• The Twelve Houses Explained Twelve divisions of your sky, set by the minute and the place you were born — and what each one has traditionally been used to file.
• Zodiac Signs, Elements and Modalities Four elements crossed with three modalities gives twelve cells, each occupied exactly once — and the grid fixes the geometry between any two signs before anyone interprets a thing.
• What Is a Birth Chart? The definition, the symbols decoded, and one real chart read out number by number.
• Moon Signs Explained What the Moon is read for, why it is the fastest thing in your chart, and the difference between a moon sign and a moon phase.
• What Is a Rising Sign? The one placement your birth date cannot give you, and the one a rounded birth time quietly destroys.
• Synastry and Compatibility: What a Sun-Sign Match Can and Cannot Tell You Cross-aspects, house overlays and composite charts explained — then an honest account of exactly how little a two-sign compatibility number knows.
• The Big Three: Sun, Moon and Rising Signs What each of the three actually is, why only one of them needs your birth time to the minute, and four real charts where the same Sun sign reads four different ways.

One question, answered completely.

• Glossary of Astrology Terms Ninety-three terms, grouped and defined once each, with a column saying where the term turns up in Zodiux's own tools — including the thirty-odd where the answer is that we do not compute it.
• Is Mercury in Retrograde Right Now? The live answer from the same ephemeris that computes your birth chart, the 2026 station calendar, and which one to actually trust.
• Libra Season 2026: Dates, Meaning and What Actually Changes The Sun's thirty days in Libra, dated to the minute from the site's own ephemeris — plus what a zodiac season actually is, so the page still works in any other year.
• The Virgo–Libra Cusp: Born 19–25 September One boundary, computed: when the Sun actually reaches 0° Libra, which dates are genuinely in doubt, and why so many people born this week have a personal planet on the other side of the line.
• North Node and South Node Explained Two intersections rather than two objects, one axis rather than two placements, and the one thing that genuinely depends on them: where eclipses can happen.
• Cardinal, Fixed and Mutable Signs Explained The three modalities are the three phases of a season, mapped onto ecliptic longitude — which is also why signs that share a modality can only square or oppose each other.
• House Systems Explained: Whole Sign, Placidus and the Rest A dozen systems, one sky, and no experiment that can tell them apart — so here is exactly what each one does and where the disagreement actually bites.
• What Does Retrograde Mean? Nothing reverses. Here is the actual geometry, the difference between overtaking and being overtaken, and every retrograde figure measured from the ephemeris rather than repeated.
• What Is a Chart Ruler? The planet your rising sign hands the chart to, and the one placement that tells you where to look next.
• What Is a Conjunction? Two bodies at the same degree of the zodiac — the one aspect that has no character of its own, because the character is entirely in which two bodies.
• What Is a Cusp in Astrology? Two different things share the name, only one of them is a measurement, and no version of it makes anyone half Leo and half Virgo.
• What Are Decans? Ten degrees of ecliptic longitude, two rulership traditions that disagree three times out of four, and an honest account of what the distinction is worth.
• What Is a Saturn Return? The orbit that sets the age, the retrograde loop that turns a date into a window, how the first, second and third returns differ, and where the reading stops.
• What Is a Square Aspect? Ninety degrees — a quarter of the zodiac — and the aspect popular astrology gets backwards more reliably than any other.
• What Is a Stellium? Where the three-planet rule came from, how often it is actually satisfied, and how to tell a personal cluster from one shared by everyone born in the same few years.
• What Is a Sun Sign? The one placement everybody already knows, taken seriously: what it measures, why its dates move between years, and how much of a chart it genuinely accounts for.
• What Is a Trine? Two bodies a third of a circle apart, which forces them into the same element — the aspect the tradition calls easy, and the one most likely to go unused.
• What Is a Void-of-Course Moon? A window defined by an absence, bounded by two events, and calculated four different ways depending on whose definition you opened.
• What Is Mercury Retrograde? Three weeks, three or four times a year, when Mercury appears to slide backward — plus the shadow periods either side, and the twentieth-century origin of the part about your hard drive.
• What Is the Ascendant? The one figure in a birth chart that belongs to a place and a minute rather than to a date.
• What Is the Midheaven? The chart's other angle: decided by a clock and a line of longitude, and the only point in the chart that ignores your latitude entirely.