Choosing a Zodiac
What actually changes when you switch the setting — every sign label moves, and every angle between bodies stays exactly where it was.
What actually changes when you switch the setting — every sign label moves, and every angle between bodies stays exactly where it was.
The measured gap between the two zeros, currently a little over 25° and growing — and the specific value Aquila and Compass use.
Zero anchored to the stars, which keeps the twelve signs with the stellar background and lets them drift against the seasons.