- From Imbolc / Brigit's day (WXQ) through Spring Equinox, to Bealtaine / May Day (SXQ).
- From Lughnasadh / Lammas (SXQ) through Autumn Equinox, to Samhain / Martinmas (WXQ).
Notice common themes and variations. Remember that, for any site, this horizon sector may well not be the most important one.
- Orange Solar trajectories split the tropical year into 48 "Tweeks" (7.6 day mean) that are better regarded as quarter-months.
- Solid Blue Lunar lines split cyclical lunistice position variation into 16 periods of about 14 months each.
- Lunistices are the most northerly and southerly moons of the month [More].
- Also see Technical Notes on the Pictures
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