instruments / chronology / derived/align_precession.txt · raw
Timocharis / Aristyllus n=17 best -276 1σ [-288,-264] 2σ [-302,-250] rms 0.25° | conventional -290: rms 0.26°, Δχ² +1.1
middle of the Pleiades stated +14.17 crossings [-358] rate +0.49°/cy resid@best -0.42 @conv -0.34 [ς'' read as 1/6 (French '14 ?')]
la claire des Hyades (Aldebaran) stated +8.75 crossings [-346] rate +0.43°/cy resid@best -0.31 @conv -0.25
la chèvre (Capella) stated +40.00 crossings [-232] rate +0.40°/cy resid@best +0.18 @conv +0.24
épaule précédente d'Orion (Bellatr stated +1.20 crossings [-300] rate +0.35°/cy resid@best -0.08 @conv -0.03 [Greek 'α καὶ [πέμπτῳ]' partly unreadable; alternatives 1 1/5, 1 1/4]
épaule suivante d'Orion (Betelgeus stated +3.50 crossings [-385] rate +0.30°/cy resid@best -0.33 @conv -0.28
la brillante de la gueule du chien stated -16.33 crossings [-414, 1697] rate +0.12°/cy resid@best -0.14 @conv -0.13
première des têtes des gémeaux (Ca stated +33.00 crossings [-369, 1395] rate +0.14°/cy resid@best -0.12 @conv -0.10
la suivante (Pollux) stated +30.00 crossings [-248, 814] rate +0.11°/cy resid@best +0.03 @conv +0.04
l'étoile du cœur du lion (Regulus) stated +21.33 crossings [-359] rate -0.24°/cy resid@best +0.24 @conv +0.20
l'épi (Spica) stated +1.40 crossings [-282] rate -0.53°/cy resid@best +0.03 @conv -0.05
dernière de la queue de la grande stated +61.50 crossings [-273] rate -0.53°/cy resid@best -0.01 @conv -0.09
seconde, au milieu de la queue stated +67.25 crossings [-245] rate -0.50°/cy resid@best -0.17 @conv -0.25
troisième, à la naissance de la qu stated +68.50 crossings [-266] rate -0.44°/cy resid@best -0.05 @conv -0.13
Arcturus stated +31.50 crossings [-161] rate -0.59°/cy resid@best -0.70 @conv -0.78
extrémité de la serre méridionale stated -5.00 crossings [-246] rate -0.53°/cy resid@best -0.17 @conv -0.24
extrémité de la serre boréale stated +1.20 crossings [-308] rate -0.51°/cy resid@best +0.17 @conv +0.10
Antarès stated -18.33 crossings [-296] rate -0.45°/cy resid@best +0.09 @conv +0.02
Hipparchus n=17 best -118 1σ [-132,-104] 2σ [-144,-92] rms 0.15° | conventional -128: rms 0.15°, Δχ² +0.5
middle of the Pleiades stated +15.17 crossings [-160] rate +0.49°/cy resid@best -0.21 @conv -0.16 [settled by p.20 difference 1 1/12]
la claire des Hyades (Aldebaran) stated +9.75 crossings [-118] rate +0.43°/cy resid@best +0.00 @conv +0.04
la chèvre (Capella) stated +40.40 crossings [-135] rate +0.40°/cy resid@best -0.07 @conv -0.03
épaule précédente d'Orion (Bellatr stated +1.80 crossings [-124] rate +0.35°/cy resid@best -0.02 @conv +0.01
épaule suivante d'Orion (Betelgeus stated +4.33 crossings [-99] rate +0.30°/cy resid@best +0.05 @conv +0.08
la brillante de la gueule du chien stated -16.00 crossings [-50, 1340] rate +0.12°/cy resid@best +0.05 @conv +0.06
première des têtes des gémeaux (Ca stated +33.33 crossings [-84, 1109] rate +0.14°/cy resid@best +0.03 @conv +0.04 [fraction glyph unreadable in both columns; alternatives 33 1/3, 33 3/5]
la suivante (Pollux) stated +30.00 crossings [-248, 814] rate +0.11°/cy resid@best -0.09 @conv -0.08
l'étoile du cœur du lion (Regulus) stated +20.67 crossings [-130] rate -0.24°/cy resid@best +0.03 @conv +0.01 [one fraction glyph unreadable; alternatives 20 1/2, 20 2/3]
l'épi (Spica) stated +0.60 crossings [-138] rate -0.53°/cy resid@best +0.11 @conv +0.06
dernière de la queue de la grande stated +60.25 crossings [-50] rate -0.53°/cy resid@best -0.38 @conv -0.43
seconde, au milieu de la queue stated +66.50 crossings [-112] rate -0.50°/cy resid@best -0.04 @conv -0.09 [fraction glyph unreadable; alternatives 66 1/2, 66 1/6]
troisième, à la naissance de la qu stated +67.60 crossings [-100] rate -0.44°/cy resid@best -0.10 @conv -0.15
Arcturus stated +31.00 crossings [-79] rate -0.59°/cy resid@best -0.24 @conv -0.30
extrémité de la serre méridionale stated -5.60 crossings [-136] rate -0.53°/cy resid@best +0.10 @conv +0.05
extrémité de la serre boréale stated +0.40 crossings [-157] rate -0.51°/cy resid@best +0.20 @conv +0.15
Antarès stated -19.00 crossings [-152] rate -0.45°/cy resid@best +0.15 @conv +0.11
Ptolemy n=17 best +114 1σ [+102,+126] 2σ [+88,+142] rms 0.20° | conventional +137: rms 0.23°, Δχ² +2.4
middle of the Pleiades stated +16.25 crossings [58] rate +0.49°/cy resid@best -0.27 @conv -0.38
la claire des Hyades (Aldebaran) stated +11.00 crossings [183] rate +0.43°/cy resid@best +0.28 @conv +0.20
la chèvre (Capella) stated +41.17 crossings [59] rate +0.40°/cy resid@best -0.21 @conv -0.29 [settled by p.20 difference 4/5]
épaule précédente d'Orion (Bellatr stated +2.50 crossings [91] rate +0.35°/cy resid@best -0.07 @conv -0.13 [settled by p.20 (δυσὶ μοίραις καὶ ∠, difference ~2/3)]
épaule suivante d'Orion (Betelgeus stated +5.25 crossings [264] rate +0.30°/cy resid@best +0.36 @conv +0.31
la brillante de la gueule du chien stated -15.75 crossings [513, 522, 529, 749, 751, 764, 774, 780] rate +0.12°/cy resid@best +0.14 @conv +0.13
première des têtes des gémeaux (Ca stated +33.40 crossings [-9, 1030] rate +0.14°/cy resid@best -0.09 @conv -0.10 [Greek 'λγ καὶ δυσὶ πέμπτοις']
la suivante (Pollux) stated +30.17 crossings [33, 37, 44, 523] rate +0.11°/cy resid@best -0.02 @conv -0.03
l'étoile du cœur du lion (Regulus) stated +19.83 crossings [131] rate -0.24°/cy resid@best -0.05 @conv +0.02 [two fraction glyphs; alternatives 19 5/6, 19 1/2]
l'épi (Spica) stated -0.50 crossings [57] rate -0.53°/cy resid@best +0.32 @conv +0.44
dernière de la queue de la grande stated +59.67 crossings [54] rate -0.53°/cy resid@best +0.34 @conv +0.46
seconde, au milieu de la queue stated +65.00 crossings [155] rate -0.50°/cy resid@best -0.23 @conv -0.11
troisième, à la naissance de la qu stated +66.25 crossings [145] rate -0.44°/cy resid@best -0.17 @conv -0.05
Arcturus stated +29.83 crossings [114] rate -0.59°/cy resid@best -0.00 @conv +0.13 [settled by p.20 difference 1 1/6]
extrémité de la serre méridionale stated -7.17 crossings [154] rate -0.53°/cy resid@best -0.21 @conv -0.10
extrémité de la serre boréale stated -1.00 crossings [113] rate -0.51°/cy resid@best +0.00 @conv +0.11
Antarès stated -20.25 crossings [131] rate -0.45°/cy resid@best -0.07 @conv +0.02
intervals by precession: first→Hipparchus +158 y, Hipparchus→Ptolemy +232 y; the book states 265 y for the second and gives Nabonassar 454–466 for Timocharis vs 880–887 for Ptolemy (≈420 y) for the whole span