Pr b perisel#1701

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Wiljea:pr-b-perisel

Commits on Jun 15, 2026

library: Add PeriSel lunar perigee function (.48s, full Meeus ch.50)

Wiljea
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claude
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constants: Compute Moon T₀ via PeriSel; add anomalistic month Porb☽

Wiljea
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claude
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