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Athenian Chronology 352/1-322/1 BCE (FILAQHNAIOS [2010])

2019

This (very) brief paper tests tests the methodology put forth in my upcoming book The Athenian Year Primer (Ch. XV, pp. 149-160) against S. Lambert's article in Philathenos (2010) pp. 92-94 (specifically, Civil Year Intercalation)

FILAQHNAIOS AQHNAI 2010 – Athenian Chronology 352/1-322/1 BCE (S. Lambert) re: pp. 92-94 Initial Run Results: Planeaux Lambert † = Julian Leap Year * = caveats 352/1 351/0 350/49 † 349/8 348/7 347/6 346/5 † 345/4 344/3 343/2 342/1 † 341/0 340/39 339/8 338/7 † 337/6 336/5 335/4 334/3 † 333/2 332/1 331/0 330/29 † 329/8 328/7 327/6 326/5 † 325/4 324/3 323/2 322/1 † 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek 1 Hek = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 3 Jul 22 Jul 11 Jul 29 Jun* 18 Jul 7 Jul 26 Jul 15 Jul 4 Jul 23 Jul 13 Jul 1 Jul 20 Jul 9 Jul 28 Jun* 16 Jul 6 Jul 25 Jul 14 Jul 3 Jul 21 Jul 10 Jul 29 Jun* 17 Jul 7 Jul 26 Jul 16 Jul 4 Jul 23 Jul 12 Jul 1 Jul I O O I O I O O I O O I O O I O I O O I O O I O I O O I O O I -O ---I O O ---I ----I O O I O O I O I -O I -O I Morgan (Meton) I O O I O I O O I O O I O O I O I O O I O O I O I O O I O O I *349 : SumSol began 12:44:49 on 27 Jun: thus, if measured accurately, would have reckoned on 27 Jun; Zenith @ Solar Noon = 75°45’18.6” (26 Jun); 75°45’32.0” (27 Jun); 75°45’20.2” (28 Jun) – too small to distinguish by shadow stick or a mercury reflector; thus 26-28 Jun possessed nearly identical conditions; AS a Boö = 04:15:31 on 28 May, so SumSol = 28 Jun *338 : SumSol began 04:40:26 on 28 Jun: thus, if measured accurately, would have reckoned on 27 Jun; Zenith @ Solar Noon = 75°45’21.8” (27 Jun); 75°45’26.3” (28 Jun); 75°45’06.2” (29 Jun) – too small to distinguish by shadow stick or a mercury reflector; thus 27-29 Jun possessed nearly identical conditions; AS a Boö = 04:18:16 on 28 May, so SumSol = 28 Jun *330 : SumSol began 03:07:19 on 28 Jun: thus, if measured accurately, would have reckoned on 27 Jun; Zenith @ Solar Noon = 75°45’18.7” (27 Jun); 75°45’22.0” (28 Jun); 75°45’00.1” (29 Jun) – too small to distinguish by shadow stick or a mercury reflector; thus 27-29 Jun possessed nearly identical conditions; AS a Boö = 04:17:28 on 28 May, so SumSol = 28 Jun. SumSol Clarification: the illusion that the SumSol did not advance from 349/8→330/29 BCE manifests because, while each alignment’s LHA (local hour angle) retards 5h20-55m each consecutive year, each quadrennium collectively advances 40-50 min. For example, SumSol LHA 338→337 BCE went from 16h42m1.14s to 22h21m55.65s, whereas the LHA 338→330 BCE went from 16h42m1.14s to only 15h07m24.46s – yet another reason why Ancient Greeks did not uncover precession until about 160 BCE; the Sun had only then begun to move just outside the margin-of-error.