27-07-2026, 09:40 PM
Summary Table of the Medieval Workflow for Calculating an Eclipse from the Toledo Tables:
Step Purpose Toledo Tables Used
1. Mean syzygy Identify candidate eclipse Mean motions
2. Equations of center Correct Sun/Moon positions Solar & lunar anomaly tables
3. True syzygy Exact conjunction/opposition Mean motions + corrections
4. Lunar latitude Determine if eclipse possible Latitude tables
5. Parallax Local visibility Parallax tables
6. Magnitude Size of eclipse Radii tables
7. Local circumstances Local timing Longitude/time tables
Step Purpose Toledo Tables Used
1. Mean syzygy Identify candidate eclipse Mean motions
2. Equations of center Correct Sun/Moon positions Solar & lunar anomaly tables
3. True syzygy Exact conjunction/opposition Mean motions + corrections
4. Lunar latitude Determine if eclipse possible Latitude tables
5. Parallax Local visibility Parallax tables
6. Magnitude Size of eclipse Radii tables
7. Local circumstances Local timing Longitude/time tables


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