Learn Astrology

Western astrology reads meaning into where the Sun, Moon and planets stand against the twelve zodiac signs. These guides explain its terms one at a time. Each one carries a table worked out by the same ephemeris that runs the rest of the site, so the dates and degrees are calculated, not copied.

Signs

Ophiuchus: Is There Really a 13th Zodiac Sign?
Ophiuchus is a real constellation the Sun crosses, but not a zodiac sign. See the 2027 dates, why they differ from your sign, and what astrologers say.
Fire Signs: Aries, Leo and Sagittarius
Fire signs are Aries, Leo and Sagittarius. Learn their traits, rulers, compatibility with air, and when the Sun and planets move through them in 2027.

Planets & Transits

What Does Retrograde Mean in Astrology?
Retrograde means a planet appears to move backward in the sky. Learn why it happens, what stations and shadows are, and which planets go retrograde.

Charts

How to Read a Birth Chart, Step by Step
Learn how to read a birth chart in four steps: big three, planets in signs and houses, aspects, and balance, with a worked example chart.

Moon

Eclipse Season: What It Is and When It Happens
Eclipse season is the roughly 35–37 day window when the Sun is near a lunar node and eclipses can happen. See the 2026–2028 dates, including 2027.

Texts are written with AI from the computed data and traditional sources and pass automated checks before they are published. How the numbers are calculated: Methodology.