What happens at a 36-degree station boundary?
Each band includes its lower boundary and excludes its upper boundary.
Understand the idea
The adopted calculation is station = floor(D ÷ 36) + 1, with D in the interval from zero to less than 360°. Station 1 therefore covers 0° through values just below 36°. At exactly 36°, the result is Station 2. At 72° it becomes Station 3. This convention avoids overlaps and gaps between bands. Round a value only for display, after calculating its band from the underlying precision. Otherwise, 35.999° displayed as 36.0° could misleadingly appear to belong to the next station. Preserve the exact value in a reproducible calculation record and make transitions clear when reporting times near a boundary. The band selection is part of Babylon’s mathematical map; the action word and reflection are the interpretive vocabulary attached to the selected station.
An example to work with
Test 35.999°, 36°, and 36.001°. The first selects Station 1, while the latter two select Station 2. Explain why rounding the displayed number before calculation could give a wrong answer.
Try the reading practice checker ↗
Did you calculate from the precise value or from its rounded label?
Part of Babylon’s authored teaching framework. Symbolic correspondences offer a language for reflection and learning.