Transit Star Tables

Definition

Transit star tables are New Kingdom Egyptian hour-tables. Each one records fixed stars crossing the meridian — the line due south, where a star culminates highest in the sky — at each hour of the night. Every table comes with a seated-figure diagram: the culminating star is marked against a body landmark of a reference observer (left ear, right shoulder, heart, and so on). They are found mainly in the burial chambers of Ramesses VI, VII, and IX in the Valley of the Kings.

In Tradition

Egyptologists — Neugebauer-Parker (EAT Vol II), with later refinement by Krauss and Belmonte-Lull — read transit star tables as a culmination-based timekeeper that replaced the Middle Kingdom's earlier diagonal tables, which timed stars by their rising. Scholars see the move from rising to culmination as a step forward in practice: a star crossing the meridian gives a sharper, less ambiguous time-mark than a star low on the horizon.

In Practice

Egyptian hour-priests used transit tables together with two instruments — the merkhet, a sighting bar, and the bay, a plumb-line cross. By watching which named star crossed the local meridian over the seated reference figure, they could read off the hour of night. Each table covers a ten-day interval (a decade), tabulating twelve named stars for the twelve night-hours. The *Book of Nut* carries a related decanal-transit-clock framework (the Krauss-Neugebauer-Parker hypothesis): a cosmographic scheme giving three ephemerides per decan — first transit, heliacal setting, and heliacal rising — for days 6, 16, and 26 of each schematic 30-day month.

Historical Origin

Transit star tables are attested in the burial chambers of Ramesses VI (Dyn 20, c. 1145-1137 BCE), Ramesses VII (c. 1137-1129 BCE), and Ramesses IX (c. 1129-1111 BCE) — in KV 9, KV 1, and KV 6 of the Valley of the Kings. Foundational edition: Neugebauer & Parker, *Egyptian Astronomical Texts Vol II: The Ramesside Star Clocks* (1964). Refined and extended by Krauss (*Astronomische Konzepte und Jenseitsvorstellungen in den Pyramidentexten*, 1997) and Belmonte-Lull (*In Search of Cosmic Order*, 2009-2010).

Further Reading

• Otto Neugebauer & Richard A. Parker, Egyptian Astronomical Texts Vol II
• Marshall Clagett, Ancient Egyptian Science Vol II
• Juan Antonio Belmonte & José Lull, In Search of Cosmic Order