What is the chart ruler?
The planet that rules your rising sign. The tradition reads it as the planet that steers the whole chart: its sign says how you go about things, its house says where your life tends to happen, and its aspects carry more weight than the same aspects to any other planet. It is the thing a working astrologer looks at right after the Sun, Moon and rising, and the thing most apps never mention.
Where astrologers disagree
Nine signs have one ruler everyone agrees on. Scorpio, Aquarius and Pisces have two: the traditional ruler (Mars, Saturn, Jupiter) and the modern one given after the outer planets were found (Pluto, Uranus, Neptune). Both are shown where it applies.
In the reference library: The chart ruler: how the rising sign sets it, and the traditional and modern rulers
Where you see this in OrbHeaven
Draw your own chart and this definition stops being abstract: the same term, with your numbers in it. Every placement, house and aspect, with the engine, the house system and the exact universal time printed underneath. No account, no email address, and nothing you type is kept.
No account, no email address, and nothing you type is kept.
The chart
What the picture is, and what the numbers on it are measuring.