קידוש החודש
Intersection register · custodian, not owner
The astronomical knowledge mobilized to fix the lunar months and the intercalary years of the Hebrew calendar. It traces the transition from observation to calculation and the controversies over the sanctification of the new moon.
Astrolabe-Persian-18C
Andrew Dunn · CC BY-SA 2.0 · Wikimedia Commons
Adler Planetarium M20 Ga Opac
CC BY-SA 4.0 · Wikimedia Commons
Iranian Astrolabe 14
Jacopo Koushan (User:Jacopo188) Photograph by Masoud Safarniya (User:M.safarniya) · CC BY-SA 3.0 · Wikimedia Commons
This Great Book does not yet have published chapters. The chapters — each bearing its register, its epistemic status and its sources — will be added as editorial enrichment and assisted generation progress.
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