{"id":368,"date":"2018-05-19T16:12:30","date_gmt":"2018-05-19T16:12:30","guid":{"rendered":"http:\/\/jonvoisey.net\/blog\/?p=368"},"modified":"2026-01-29T16:57:18","modified_gmt":"2026-01-29T22:57:18","slug":"almagest-index","status":"publish","type":"post","link":"https:\/\/jonvoisey.net\/blog\/2018\/05\/almagest-index\/","title":{"rendered":"Almagest: Index"},"content":{"rendered":"<p>To help keep track of my working through the <em>Almagest<\/em>, below is an index of posts, grouped by book and chapter.\u00a0<br \/><!--more--><\/p>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book I<\/strong><\/span><\/p>\r\n<p><strong><em>Overview of Books I-II<\/em><\/strong><\/p>\r\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/0grfaS04HrI?si=hVvUVBI9kAk3-O_x\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\r\n<p><strong><em>Chapters 1 &#8211; 9 &#8211; Preliminary Statements<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/05\/20\/the-almagest-book-i-introduction\/\">Introduction<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 10 &#8211; Deriving the Chord Table<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/05\/22\/the-almagest-book-i-special-angle-chords\/\">Special Angle Chords<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/05\/29\/the-almagest-book-i-ptolemys-theorem\/\">Ptolemy&#8217;s Theorem<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/05\/30\/the-almagest-book-i-corollaries-to-ptolemys-theorem\/\">Corollaries to Ptolemy&#8217;s Theorem<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/01\/the-almagest-book-i-aristarchus-inequality-and-the-chords-of-1\/\">Aristarchus&#8217; Inequality and the Chords of 1\u00ba &amp; \u00bd\u00ba<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 11 &#8211; Table of Chords<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/03\/almagest-book-i-ptolemys-table-of-chords\/\">Ptolemy&#8217;s Table of Chords<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 12 &#8211; Obliquity of the Ecliptic<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/05\/almagest-book-i-angle-between-celestial-equator-and-ecliptic\/\">Angle Between Celestial Equator and Ecliptic<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 13 &#8211; Lemmas for Spherical Trigonometry<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/09\/almagest-book-i-triangular-lemmas-for-spherical-trigonometry\/\">Triangular Lemmas for Spherical Trigonometry<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/25\/almagest-book-i-circular-lemmas-for-spherical-trigonometry\/\">Circular Lemmas for Spherical Trigonometry<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/26\/almagest-book-i-menelaus-theorem\/\">Menelaus&#8217; Theorem<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/30\/exploring-menelaus-theorem\/\">Exploring Menelaus&#8217; Theorem<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 14 &#8211; Arcs Between Celestial Equator and Ecliptic<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/30\/almagest-book-i-the-arcs-between-the-equator-and-ecliptic\/\">Arcs Between the Celestial Equator and Ecliptic<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 15 &#8211; Table of Inclinations<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/06\/30\/almagest-book-i-table-of-inclinations\/\">Table of Inclinations (Between the Equator and Ecliptic)<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 16 &#8211; Rising Times at Sphaera Recta<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/07\/08\/almagest-book-i-rising-times-at-sphaera-recta\/\">Rising Times of the Celestial Equator at Sphaera Recta<\/a><\/li>\r\n<\/ul>\r\n<p>&nbsp;<\/p>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book II<\/strong><\/span><\/p>\r\n<p><strong><em>Chapter 1 &#8211; On the General Location of Our Part of the World<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/07\/24\/almagest-book-ii-introduction\/\">Introduction<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 2 &#8211; Length of Longest Day\u00a0\u2192 Arc of Horizon Between Equator &amp; Ecliptic<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/08\/02\/almagest-book-ii-arcs-of-the-horizon-between-equator-and-ecliptic\/\">Arcs of the Horizon Between Equator and Ecliptic<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 3 &#8211; Length of Longest Day\u00a0\u2192 Elevation of Pole\/Latitude<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/08\/02\/almagest-book-ii-from-length-of-longest-day-finding-elevation-of-the-pole\/\">From Length of Longest Day Finding Elevation of the Pole<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/08\/03\/almagest-book-ii-difference-between-length-of-solstice-day-vs-equinox-from-latitude\/\">Difference Between Length of Solstice Day vs Equinox From Latitude<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/08\/13\/almagest-book-ii-symmetries-of-arcs-and-day-night-lengths\/\">Symmetries of Arcs and Day\/Night Lengths<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 4 &#8211; How to Compute When, Where, and How Often the Sun Reaches the Zenith<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/08\/15\/almagest-book-ii-for-what-regions-when-and-how-often-the-sun-reaches-the-zenith\/\">For What Regions, When, and How Often the Sun Reaches the Zenith<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 5 &#8211; Ratios of Gnomon Equinoctial and Solstical Noon Shadows<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/08\/16\/almagest-book-ii-ratio-of-gnomon-equinoctial-and-solsticial-shadows\/\">Ratio of Gnomon Equinoctial and Solsticial Shadows<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 6 &#8211; Special Characteristics by Latitude<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/08\/21\/almagest-book-ii-exposition-of-special-characteristics-parallel-by-parallel\/\">Exposition of Special Characteristics, Parallel by Parallel<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 7 &#8211; On Simultaneous Risings of Arcs of the Ecliptic and Equator at Sphaera Obliqua<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/09\/almagest-book-ii-symmetry-of-rising-times\/\">Arcs of the Ecliptic Equidistant from the Same Equinox<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/10\/almagest-book-ii-symmetry-of-rising-times-part-2\/\">Arcs of the Ecliptic Equidistant from the Same Solstice<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/10\/almagest-book-ii-calculation-of-rising-times-at-sphaera-obliqua\/\">Rising Times of the Ecliptic at <em>Sphaera Obliqua<\/em> (Part 1)<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/11\/almagest-book-ii-calculation-of-rising-times-at-sphaera-obliqua-for-remaining-arcs\/\">Rising Times of the Ecliptic at <em>Sphaera Obliqua<\/em> (Part 2)<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/12\/almagest-book-ii-ascensional-difference\/\">Ascensional Difference<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/12\/almagest-book-ii-calculation-of-rising-times-at-sphaera-obliqua-for-10o-arcs\/\">Rising Times of the Ecliptic at <em>Sphaera Obliqua<\/em> (Part 3)<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 8 &#8211; Table of Rising times at 10\u00ba Intervals<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/12\/rising-time-of-the-ecliptic-tables\/\">Rising Time of the Ecliptic Tables<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 9 &#8211; On the Particular Features Which Follow from the Rising Time Tables<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/12\/applications-of-rising-time-tables\">Applications of Rising Time Tables<\/a><\/li>\r\n<\/ul>\r\n\r\n<p><strong><em>Chapter 10 &#8211; Angles Between Ecliptic and Meridian<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/02\/almagest-book-ii-angle-between-ecliptic-and-meridian-symmetries\/\">Symmetries<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/02\/almagest-book-ii-angle-between-ecliptic-and-meridian-angle-calculations\/\">Angle Calculations<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 11 &#8211; Angles Between Ecliptic and<\/strong> <strong>Horizon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/02\/almagest-book-ii-angle-between-ecliptic-and-horizon-symmetries\/\">Symmetries<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/03\/almagest-book-ii-angle-between-ecliptic-and-horizon-calculations\/\">Angle Calculations<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 12 &#8211; Angles Between Ecliptic and Altitude Circle<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/04\/almagest-book-ii-angle-between-ecliptic-and-altitude-circle-relationships\/\">Relationships<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/05\/almagest-book-ii-angle-between-ecliptic-and-altitude-circle-calculations\/\">Calculations<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 13 &#8211; Table of Zenith Distances and Ecliptic Angles<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/05\/almagest-book-ii-table-of-zenith-distances-and-ecliptic-angles\/\">Zenith and Ecliptic table<\/a><\/li>\r\n<\/ul>\r\n<p>&nbsp;<\/p>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book III<\/strong><\/span><\/p>\r\n<p><em><strong>Overview of Book III<\/strong><\/em><\/p>\r\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/nEoyio2QkZM?si=O4Nz4ND2waUIs5EB\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\r\n<p><em><strong>Chapter 1 &#8211; On the Length of the Year<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/05\/almagest-book-iii-on-the-length-of-the-year\/\">On the Length of the Year<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 2 &#8211; Table of the Mean Motion of the Sun<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/05\/almagest-book-iii-table-of-the-mean-motion-of-the-sun\/\">Table of the Mean Motion of the Sun<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 3 &#8211; On Hypotheses for Uniform Circular Motion<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/10\/almagest-book-iii-hypotheses-for-circular-motion-part-1\/\">Introduction to the Eccentric and Epicyclic Models<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/10\/almagest-book-iii-hypotheses-for-circular-motion-part-2\/\">Similarities in Time Between Apogee and Mean Between Models<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-hypotheses-for-circular-motion-part-3\/\">Similarities in the Equation of the Anomaly<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-hypotheses-for-circular-motion-similarities-in-apparent-apogee-and-perigee-distances\/\">Similarities in Apparent Apogee and Perigee Distances<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; On The Anomaly of the Sun<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-on-the-anomaly-of-the-sun-part-1\/\">Basic Parameters<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-on-the-anomaly-of-the-sun-difference-between-mean-and-anomalistic-motion\/\">Difference Between Mean and Anomalistic Motions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; On the Construction of a Table of the Equation of Anomaly<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-equation-of-anomaly-from-apogee-using-eccentric-hypothesis\/\">Equation from Apogee using Eccentric Hypothesis<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-equation-of-anomaly-from-apogee-using-epicyclic-hypothesis\/\">Equation from Apogee using Epicyclic Hypothesis<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-equation-of-anomaly-from-perigee-using-eccentric-hypothesis\/\">Equation from Perigee using Eccentric Hypothesis<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-equation-of-anomaly-from-perigee-using-epicyclic-hypothesis\/\">Equation from Perigee using Epicyclic Hypothesis<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 6 &#8211; Table of the Sun&#8217;s Anomaly<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-table-of-the-suns-anomaly\/\">Table of the Sun&#8217;s Anomaly<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 7 &#8211; Epoch of Solar Mean Motion<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-on-the-epoch-of-the-suns-mean-motion\/\">On the Epoch of the Sun&#8217;s Mean Motion<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 8 &#8211; On the Calculation of the Solar Position<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/11\/almagest-book-iii-on-the-calculation-of-the-solar-position\/\">Calculation of the Solar Position<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 9 &#8211; On the inequality of the [Solar] Days<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/12\/almagest-book-iii-on-the-inequality-of-solar-days\/\">On the Inequality of Solar Days<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book IV<\/strong><\/span><\/p>\r\n<p><em><strong>Overview of Book IV<\/strong><\/em><\/p>\r\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/-O9cWVXSE-c?si=OVAW3pxW6_2WREKS\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\r\n<p><em><strong>Chapter 1 &#8211; Observations Necessary to Examine Lunar Phenomena<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/12\/almagest-book-iv-observations-necessary-to-examine-lunar-phenomena\/\">Observations Necessary to Examine Lunar Phenomena<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 2 &#8211; On Periods of the Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/12\/almagest-book-iv-periods-of-the-moon\/\">Mean Periods of the Moon<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/01\/almagest-book-iv-solar-anomaly-and-lunar-periods\/\">Solar Anomaly and Lunar Periods<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/05\/almagest-book-iv-lunar-anomaly-and-eclipses\/\">Lunar Anomaly and Eclipses<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/05\/almagest-book-iv-favorable-positions-for-lunar-eclipse-pairs\/\">Favorable Positions for Lunar Eclipse Pairs<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 3 &#8211; On the Individual Mean Motions of the Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/05\/almagest-book-iv-on-the-individual-mean-motions-of-the-moon\/\">Mean Lunar Motions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; Tables of the Mean Motions of the Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/05\/almagest-book-iv-lunar-mean-motion-tables\/\">Lunar Mean Motions Table<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; In the Simple Hypothesis of the Moon, the Same Phenomena are Produced by Both the Eccentric and Epicyclic Hypotheses<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/05\/almagest-book-iv-in-the-simple-hypothesis-of-the-moon-the-same-phenomena-are-produced-by-both-the-eccentric-and-epicyclic-hypotheses\/\">Simple Case<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/05\/almagest-book-iv-uneven-ratios-in-epicyclic-and-eccentric-model\/\">Uneven Ratios in Epicyclic and Eccentric Model<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 6 &#8211; Demonstration of the First, Simple Anomaly of the Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/06\/almagest-book-iv-the-babylonian-eclipse-triple\/\">Babylonian Eclipse Triple &#8211; Solar\/Lunar Positions &amp; Epicyclic Anomaly<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-babylonian-eclipse-triple-geometry-radius-of-the-epicycle\/\">Babylonian Eclipse Triple &#8211; Radius of the Epicycle<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-babylonian-eclipse-triple-geometry-mean-moon\/\">Babylonian Eclipse Triple &#8211; Equation of Anomaly &amp; The Mean Moon<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-alexandrian-eclipse-triple-solar-lunar-positions-epicyclic-anomaly\/\">Alexandrian Eclipse Triple &#8211; Solar\/Lunar Positions &amp; Epicyclic Anomaly<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-alexandrian-eclipse-triple-radius-of-the-epicycle\/\">Alexandrian Eclipse Triple &#8211; Radius of the Epicycle<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-alexandrian-eclipse-triple-geometry-equation-of-anomaly-the-mean-moon\/\">Alexandrian Eclipse Triple &#8211; Equation of Anomaly &amp; The Mean Moon<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 7 &#8211; Correction of Mean Motion in Longitude and Anomaly<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-correction-of-the-mean-positions-of-the-moon-in-longitude-and-anomaly\/\">Checking and Correcting the Values<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 8 &#8211; The Epoch of the Mean Motions in Longitude and Anomaly<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-the-epoch-of-the-mean-motions-of-the-moon-in-longitude-and-anomaly\/\">Determining the Positions at Beginning of Epoch<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 9 &#8211; Correction of the Mean Position in Latitude and its Epoch<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-correcting-the-lunar-mean-motion-in-latitude\/\">Correcting the Mean Motion in Latitude<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-determining-the-lunar-epoch-for-latitude\/\">Determining the Position of Lunar Latitude of Epoch<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 10 &#8211; Table of the Lunar Equation of Anomaly (First Anomaly)<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/08\/almagest-book-iv-table-of-lunar-equation-of-anomaly-first-anomaly\/\">Lunar Equation of Anomaly<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 11 &#8211; Hipparchus&#8217; Two Determinations of the Lunar Anomaly<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/09\/almagest-book-iv-hipparchus-two-values-of-lunar-anomaly\/\">Errors in Hipparchus&#8217; First Eclipse Triad<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/09\/almagest-book-iv-hipparchus-two-values-of-lunar-anomaly-second-triad\/\">Errors in Hipparchus&#8217; Second Eclipse Triad<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book V<\/strong><\/span><\/p>\r\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/YXwGZeE2m3c?si=AEXuZA6zwNyNdGMD\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\r\n<p><strong><em>Chapter 1 &#8211; On the Construction and Use of an Astrolabe<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/09\/almagest-book-v-on-the-construction-of-an-astrolabe\/\">On the Construction<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/09\/almagest-book-v-on-the-use-of-an-astrolabe\/\">On the Use<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 2 &#8211; Model for the Second Anomaly<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/09\/almagest-book-v-model-for-the-second-anomaly\/\">The Basic Model<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 3<\/strong><\/em><strong> &#8211; Size of the Second Anomaly<\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/09\/almagest-book-v-size-of-the-second-anomaly\/\">Size of the Second Anomaly<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; Ratio of the Eccentricity of the Moon&#8217;s Circle<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/09\/second-anomaly-eccentricity\/\">Second Anomaly Eccentricity<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; On the Direction of the Moon&#8217;s Epicycle<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/10\/almagest-book-v-the-direction-of-the-moons-epicycle\/\">First Calculation<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/10\/almagest-book-v-second-determination-of-direction-of-epicycle\/\">Second Calculation<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 6 &#8211; Geometrical Calculation of Lunar Position<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/11\/almagest-book-v-determining-true-position-of-the-moon-geometrically-from-periodic-motions\/\">Determining the True Position Geometrically from Periodic Motions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 7 &#8211; Construction of a table for Complete Lunar Anomaly<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/11\/almagest-book-v-constructing-the-lunar-anomaly-table\/\">Constructing the Lunar Anomaly Table<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 8 &#8211; Table of Complete Lunar Anomaly<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/11\/almagest-book-v-complete-table-of-lunar-anomaly\/\">Lunar Anomaly Table<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 9 &#8211; On the Complete Calculation of the Moon&#8217;s Position<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/calculation-of-the-lunar-position\/\">Calculation of the Lunar Position<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 10 &#8211; The Difference at Syzygies Due to the Eccentre is Negligible<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/almagest-book-v-the-difference-at-syzygies-maximum-lunar-anomaly\/\">Maximum Lunar Anomaly<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 11 &#8211; On Lunar Parallax<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/almagest-book-v-lunar-parallax\/\">Lunar Parallax<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 12 &#8211; On the Construction of a Parallactic Instrument<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/almagest-book-v-the-parallactic-instrument\/\">The Parallactic Instrument<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/almagest-book-v-lunar-parallactic-observations\/\">Lunar Parallactic Observations<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 13 &#8211; Demonstration of the Distances of the Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/almagest-book-v-calculation-of-lunar-parallax\/\">Calculation of Lunar Parallax<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/almagest-book-v-calculation-of-lunar-distance\/\">Calculation of Lunar Distance<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/almagest-book-v-scale-of-the-lunar-model\/\">Scale of the Lunar Model<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 14 &#8211; On the Ratio of the Apparent Diameters of Sun, Moon, and Shadow at Syzygies<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2020\/12\/almagest-book-v-angular-diameter-of-the-moon\/\">Apparent Diameter of the Moon and Earth&#8217;s Shadow at Apogee During Syzygy<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 15 &#8211; On the Distance of the Sun and Other Consequences of the Demonstration of That<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/01\/almagest-book-v-distance-to-the-sun\/\">Distance of the Sun<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 16 &#8211; On the Sizes of Sun, Moon, and Earth<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/01\/almagest-book-v-size-of-the-sun-moon-and-earth\/\">Size of the Sun, Moon, and Earth<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 17 &#8211; On the Individual Parallaxes of the Sun and Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/01\/almagest-book-v-parallaxes-of-the-sun-and-moon\/\">Parallaxes of Sun and Moon<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/01\/almagest-book-v-lunar-distance-adjustments-for-epicycle\/\">Lunar Distance Adjustments for Epicycle<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/01\/almagest-book-v-lunar-distance-adjustments-for-eccentre\/\">Lunar Distance Adjustments for Eccentre<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 18 &#8211; Table of the Total Parallax for Sun and Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/02\/almagest-book-v-parallax-table\/\">Parallax Table and commentary<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 19 &#8211; On the Determination of Parallaxes<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/04\/almagest-book-v-determining-parallax\/\">Calculating Lunar Parallax Along Great Circle Through Zenith<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/04\/almagest-book-v-solar-parallax\/\">Calculating Solar Parallax Along Great Circle Through Zenith<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/04\/almagest-book-v-components-of-parallax\/\">Components of Parallax<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/05\/almagest-book-v-components-of-parallax-corrections\/\">Corrections to Parallax Calculation<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/05\/almagest-book-v-components-of-parallax-correction-example\/\">Correction to Parallax Example<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book VI<\/strong><\/span><\/p>\r\n<p><em><strong>Chapter 1 &#8211; On Conjunctions and Oppositions of the Sun and Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/07\/almagest-book-vi-on-conjunctions-and-oppositions-of-sun-and-moon\/\">On Conjunctions and Oppositions of the Sun and Moon<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 2 &#8211; Construction of the Tables of Mean Syzygies<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/09\/almagest-book-vi-construction-of-the-table-of-mean-syzygies\/\">Constructing the Tables<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 3 &#8211; Tables of Conjunctions and Oppositions<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/09\/almagest-book-vi-table-of-mean-syzygies\/\">Table of Conjunctions and Oppositions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; How to Determine the Mean and True Syzygies<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/09\/almagest-book-vi-how-to-determine-the-mean-and-true-syzygies\/\">Calculation of Mean and True Syzygies<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; On the Ecliptic Limits of Sun and Moon<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/09\/almagest-book-vi-lunar-diameter-at-perigee-during-syzygy\/\">Lunar Diameter and Earth&#8217;s Shadow at Perigee During Syzygy<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/11\/almagest-book-vi-lunar-eclipse-limits\/\">Lunar Eclipse Limits<\/a>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/11\/mean-to-true-conjunction-alternate-method\/\">Alternate Method for finding Mean to True Conjunction<\/a><\/li>\r\n<\/ul>\r\n<\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/12\/almagest-book-vi-eclipse-limits-for-solar-eclipses\/\">Solar Eclipse Limits &#8211; Latitudinal Parallax<\/a>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/12\/eclipse-limits-for-solar-eclipses-latitudinal-parallax-alternate-method\/\">Alternate Method for finding Lunar Latitudinal Parallax<\/a><\/li>\r\n<\/ul>\r\n<\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/12\/almagest-book-vi-eclipse-limits-for-solar-eclipses-longitudinal-parallax\/\">Solar Eclipse Limits &#8211; Longitudinal Parallax<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/12\/almagest-book-vi-eclipse-limits-for-solar-eclipses-solar-lunar-anomalies\/\">Solar Eclipse Limits &#8211; Solar &amp; Lunar Anomaly<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 6 &#8211; On the Interval of Months Between Eclipses<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/12\/almagest-book-vi-solar-and-lunar-eclipses-separated-by-six-months\/\">Solar and Lunar Eclipses Separated by Six Months<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/12\/almagest-book-vi-lunar-eclipses-separated-by-five-months\/\">Lunar Eclipses Separated by Five Months<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/12\/almagest-book-vi-lunar-eclipses-separated-by-seven-months\/\">Lunar Eclipses Separated by Seven Months<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2021\/12\/almagest-book-vi-solar-eclipses-separated-by-five-months\/\">Solar Eclipses Separated by Five Months<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/02\/almagest-book-vi-solar-eclipses-separated-by-seven-months\/\">Solar Eclipses Separated by Seven Months<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/02\/almagest-book-vi-solar-eclipses-separated-by-one-month\/\">Solar Eclipses Separated by One Month<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 7 &#8211; Construction of the Eclipse Tables<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/02\/almagest-book-vi-construction-of-the-eclipse-tables-solar-eclipse-tables\/\">Solar Eclipse Tables<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/02\/almagest-book-vi-construction-of-the-eclipse-tables-lunar-eclipse-tables\/\">Lunar Eclipse Tables<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/02\/almagest-book-vi-table-of-eclipse-correction\/\">Table of Eclipse Correction<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/03\/almagest-book-vi-table-for-magnitudes-of-solar-and-lunar-eclipses-solar-eclipse-example\/\">Table of Magnitudes &#8211; Solar Example<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/03\/almagest-book-vi-table-for-magnitudes-of-solar-and-lunar-eclipses-lunar-eclipse-example\/\">Table of Magnitudes &#8211; Lunar Example<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 8 &#8211; Eclipse Tables<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/03\/almagest-book-vi-eclipse-tables\/\">Eclipse Tables<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 9 &#8211; Determination of Lunar Eclipses<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/04\/almagest-book-vi-predicting-lunar-eclipses\/\">Predicting Lunar Eclipses<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 10 &#8211; Determination of Solar Eclipses<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/04\/almagest-book-vi-predicting-solar-eclipses\/\">Predicting Solar Eclipses<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/04\/almagest-book-iv-adjustments-to-intervals-for-parallax\/\">Immersion\/Emersion Adjustments<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 11 &#8211; On the Angles of Inclination at Eclipses<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/05\/almagest-book-vi-angles-of-inclination-at-eclipses\/\">Angles of Inclination at Eclipses<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 12 &#8211; Display of Diagrams for the Inclinations<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/05\/almagest-book-vi-horizon-diagram\/\">Horizon Diagram<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/05\/almagest-book-vi-table-of-angles-of-inclination-at-eclipses\/\">Table of Angles of Inclination at Eclipses<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 13 &#8211; Determination of the Inclinations<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/05\/almagest-book-vi-determining-the-inclinations\/\">Determining the Inclinations<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book VII<\/strong><\/span><\/p>\r\n<p><em><strong>Chapter 1 &#8211; That the Fixed Stars Always Maintain the Same Position Relative to Each Other<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/05\/almagest-book-vii-on-the-relative-positions-of-the-stars\/\">On the Relative Positions of the Stars<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/05\/almagest-book-vii-hipparchus-star-alignments\/\">Hipparchus&#8217; Star Alignments<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/05\/almagest-book-vii-ptolemys-star-alignments\/\">Ptolemy&#8217;s Star Alignments<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 2 &#8211; That the Sphere of the Fixed Stars, Too, Performs a Rearward Motion Along the Ecliptic<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/05\/almagest-book-vii-on-precession\/\">On Precession<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 3 &#8211; That the Rearward Motion of the Sphere of Fixed Stars, too, Takes Place About the Poles of the Ecliptic<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/09\/almagest-book-vii-on-the-poles-of-precession\/\">On the Poles of Precession<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/09\/almagest-book-vii-on-the-rate-of-precession-from-hipparchus-observations\/\">On the Rate of Precession from Hipparchus&#8217; Time<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/09\/almagest-book-vii-on-the-rate-of-precession-from-other-greek-astronomers-observations\/\">On the Rate of Precession from Other Greek Astronomers<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; On the Method Used to Record [the Positions of] the Fixed Stars<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2022\/09\/almagest-book-vii-on-the-method-used-to-record-the-positions-of-the-fixed-stars\/\">Use of an Armillary Sphere for Stellar Observation<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; The Star Catalog<\/strong><\/em><\/p>\r\n<p><span style=\"text-decoration: underline;\">NOTE<\/span>: The authorship of the star catalog is in serious question. I have a series of posts exploring this topic, an index of which can be <a href=\"https:\/\/jonvoisey.net\/blog\/2022\/10\/scholarly-history-of-ptolemys-star-catalog-index\/\">found here<\/a>. For a more condensed version, see <a href=\"https:\/\/www.universetoday.com\/159885\/the-historic-discussion-of-ptolemys-star-catalog\/\">my article in\u00a0<em>Universe Today<\/em><\/a>.<\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/01\/almagest-book-vii-viii-the-star-catalog\/\">The Star Catalog<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book VIII<\/strong><\/span><\/p>\r\n<p><em><strong>Chapter 2 &#8211; On the Situation of the Circle of the Milky Way<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/02\/almagest-book-viii-on-the-location-of-the-milky-way\/\">The Location of the Milky Way<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 3 &#8211; On the Construction of a Solid Globe<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/02\/almagest-book-viii-on-the-construction-of-a-solid-globe\/\">Building a Celestial Globe<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; On the Configurations Particular to the Fixed Stars<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/03\/almagest-book-viii-configurations-of-the-fixed-stars\/\">Configurations of the Fixed Stars<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; On the Simultaneous Risings, Culminations, and Settings of the Fixed Stars<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/04\/almagest-book-viii-on-simultaneous-culminations\/\">On Simultaneous Culminations<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/04\/almagest-book-viii-on-simultaneous-risings-settings-of-the-fixed-stars\/\">On Simultaneous Risings and Settings<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 6 &#8211; On the First and Last Visibilities of the Fixed Stars<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/06\/almagest-book-viii-on-the-first-and-last-visibilities\/\">On the First and Last Visibilities<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book IX<\/strong><\/span><\/p>\r\n<p><em><strong>Chapter 1 &#8211; On the Order of the Spheres of the Sun, Moon, and the Five Planets<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/06\/almagest-book-ix-on-the-order-of-the-spheres\/\">On the Order of the Spheres<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 2 &#8211; On Our Purpose in the Hypotheses of the Planets<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/06\/almagest-book-ix-purpose-of-the-planetary-theory\/\">Purpose of Planetary Theory<\/a><\/li>\r\n<\/ul>\r\n<p><strong><em>Chapter 3 &#8211; On the Periodic Returns of the Five Planets<\/em><\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/06\/almagest-book-ix-returns-of-the-five-planets\/\">Returns of the Five Planets<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; Tables of Mean Motion in Longitude and Anomaly of the Five Planets<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/06\/almagest-book-ix-planetary-mean-motion-tables\/\">Planetary Mean Motion Tables<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; Preliminary Notions [Necessary] for the Hypotheses of the Five Planets<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/08\/almagest-book-ix-preliminary-notions\/\">Preliminary Notions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 6 &#8211; On the Type and Difference Between the Hypotheses<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/08\/almagest-book-ix-four-planets-model\/\">Model for Planets Other Than Mercury<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/09\/almagest-book-ix-model-for-mercury\/\">Model for Mercury<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/09\/almagest-book-ix-symmetries-in-the-general-planetary-model\/\">Symmetries for General Planetary Model<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/09\/almagest-book-ix-symmetries-in-mercurys-planetary-model\/\">Symmetries for Mercury&#8217;s Model<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 7 &#8211; Determination of Mercury&#8217;s Apogee from Greatest Elongations<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/09\/almagest-book-ix-the-line-of-apsides-of-mercury\/\">The Apsidal Line<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 8 &#8211; That the Planet Mercury, Too, Comes Closest to Earth Twice in One Revolution<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/09\/almagest-book-ix-mercurys-double-perigee\/\">Mercury&#8217;s Double Perigee<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 9 &#8211; On the Ratio and Amount of the Anomalies of Mercury<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/10\/almagest-book-ix-the-eccentricities-of-mercury\/\">The Eccentricities<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/10\/almagest-book-ix-apparent-size-of-the-epicycle\/\">The Angular Size of the Epicycle<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 10 &#8211; On the Correction of the Periodic Motions of Mercury<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/10\/almagest-book-ix-position-of-mercury-about-epicycle-1\/\">Position of Mercury About the Epicycle on May 17\/18, 139 CE<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-ix-position-of-mercury-about-epicycle-264-bce-nov-14-15\/\">Position of Mercury About the Epicycle on Nov 14\/15, 264 BCE<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 11 &#8211; On Epoch of [Mercury&#8217;s] Periodic Motions<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-ix-mercurys-epoch-positions\/\">Mercury&#8217;s Epoch Positions<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book X<\/strong><\/span><\/p>\r\n<p><em><strong>Chapter 1 &#8211; Demonstration of [the Position of] the Apogee of the Planet Venus<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-x-the-apogee-of-venus\/\">The Apogee of Venus<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 2 &#8211; On the Size of [Venus&#8217;] Epicycle<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-x-the-location-of-venus-apogee\/\">The Location of Venus&#8217; Apogee<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-x-the-size-of-venus-epicycle\/\">The Size of Venus&#8217; Epicycle<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 3 &#8211; On the ratios of the eccentricities of the planet [Venus]<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-x-the-equant-of-venus\/\">The Equant of Venus<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; On the Correction of the Periodic Motions of the Planet [Venus]<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-ix-position-of-venus-about-epicycle-dec-156-138-ce\/\">Position of Venus about the Epicycle on Dec 15\/16 138 CE<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-x-position-of-venus-about-the-epicycle-on-oct-10-11-271-bce\/\">Position of Venus about the Epicycle on Oct 10\/11 271 BCE and the Motion in Anomaly<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; On the Epoch of [Venus&#8217;] Periodic Motions<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-x-venus-epoch-position\/\">Venus&#8217; Epoch Position<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 6 &#8211; Preliminaries for the Demonstrations Concerning the Other [Three Outer] Planets<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2023\/12\/almagest-book-x-preliminary-comments-regarding-the-models-for-superior-planets\/\">Preliminary Comments Regarding the Models for Superior Planets<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 7 &#8211; Demonstration of the Eccentricity and Apogee [Position] of Mars<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/03\/almagest-book-x-observations-and-introduction-to-iterative-calculations-for-apogee-and-eccentricity\/\">Observations and Introduction to Iterative Calculations<\/a><\/li>\r\n<li><strong>First Iteration<\/strong>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/03\/almagest-book-x-preliminary-determination-of-mars-apogee-eccentricity-part-1\/\">Part 1<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/03\/almagest-book-x-preliminary-determination-of-mars-apogee-eccentricity-part-2\/\">Part 2<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/03\/almagest-book-x-correction-for-equant-first-opposition\/\">Correction for the First Opposition<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/04\/almagest-book-x-correction-for-equant-second-opposition\/\">Correction for the Second Opposition<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/05\/almagest-book-x-correction-for-equant-third-opposition\/\">Correction for the Third Opposition<\/a><\/li>\r\n<\/ul>\r\n<\/li>\r\n<li><strong>Second Iteration<\/strong>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/07\/almagest-book-x-second-iteration-for-mars\/\">Part 1<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/07\/almagest-book-x-second-iteration-for-mars-part-2\/\">Part 2<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/07\/almagest-book-x-second-iteration-correction-for-equant-first-opposition\/\">Correction for the First Opposition<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/07\/almagest-book-x-second-iteration-correction-for-equant-second-opposition\/\">Correction for the Second Opposition<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/07\/almagest-book-x-second-iteration-correction-for-equant-third-opposition\/\">Correction for the Third Opposition<\/a><\/li>\r\n<\/ul>\r\n<\/li>\r\n<li><strong>Third Iteration<\/strong>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/07\/almagest-book-x-third-iteration-for-mars\/\"><span style=\"font-size: 1rem;\">Final Iteration<\/span><\/a><\/li>\r\n<\/ul>\r\n<\/li>\r\n<li><strong>Check Against Observation Intervals<\/strong>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-x-checking-the-eccentricity-and-apogee\/\">Checking the Eccentricity and Apogee<\/a><\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 8 &#8211; Demonstration of the Size of the Epicycle of Mars<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-x-the-size-of-mars-epicycle\/\">Determining the Size of the Epicycle<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 9 &#8211; On the Correction of the Periodic Motions of Mars<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-x-correction-to-the-periodic-motions\/\">Correction to the Periodic Motions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 10 &#8211; On the Epoch of [Mars&#8217;] Periodic Motions<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-x-mars-epoch-positions\/\">Mars&#8217; Epoch Positions<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book XI<\/strong><\/span><\/p>\r\n<p><em><strong>Chapter 1 &#8211; Demonstration of the Eccentricity of Jupiter<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-jupiters-eccentricity\/\">Jupiter&#8217;s Eccentricity<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-correction-for-the-first-opposition\/\">Correction for the First Opposition<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-correction-for-the-equant-second-opposition\/\">Correction for the Second Opposition<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-correction-for-the-equant-third-opposition\/\">Correction for the Third Opposition<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-second-iteration-for-jupiter\/\">Second Iteration<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-verification-of-jupiter-derivations\/\">Checking the Eccentricity and Apogee<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 2 &#8211; Demonstration of the Size of Jupiter&#8217;s Epicycle<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-determining-the-size-of-jupiters-epicycle\/\">Determining the Size of the Jupiter&#8217;s Epicycle<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 3 &#8211; On the Correction of the Periodic Motions of Jupiter<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-jupiters-periodic-motions\/\">Jupiter&#8217;s Periodic Motion<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 4 &#8211; On the Epoch of Jupiter&#8217;s Periodic Motions<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-jupiters-epoch-positions\/\">Jupiter&#8217;s Epoch Positions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 5 &#8211; Demonstration of Saturn&#8217;s Eccentricity and [the Position of] its Apogee<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/08\/almagest-book-xi-saturns-eccentricity\/\">Saturn&#8217;s Eccentricity<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-corrections-for-the-equant\/\">Corrections for the Equant<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-second-iteration-for-saturn\/\">Second Iteration for Saturn<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-checking-the-eccentricity-and-apogee-of-saturn\/\">Checking the Eccentricity and Apogee<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 6 &#8211; Demonstration of the Size of Saturn&#8217;s Epicycle<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-determining-the-size-of-saturns-epicycle\/\">Determining the Size of Saturn&#8217;s Epicycle<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 7 &#8211; On the Correction of Saturn&#8217;s Periodic Motions<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-saturns-periodic-motion\/\">Saturn&#8217;s Periodic Motion<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 8 &#8211; On the Epoch of Saturn&#8217;s Periodic Motions<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-saturns-epoch-position\/\">Saturn&#8217;s Epoch Positions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 9 &#8211; How the True Positions can be found Geometrically from the Periodic Motions<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-finding-the-true-position\/\">Finding the True Positions<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 10 &#8211; Method of Constructing Tables for the Anomalies<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-constructing-the-tables-of-anomaly\/\">Planets Excluding Mercury<\/a><\/li>\r\n<\/ul>\r\n<p><em><strong>Chapter 11 &#8211; Planetary Equation Tables<\/strong><\/em><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-planetary-tables-of-anomaly\/\">Planetary Tables of Anomaly<\/a><\/li>\r\n<\/ul>\r\n<p><strong>Chapter 12 &#8211; On the Computation of the Longitude of the Five Planets<\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2024\/09\/almagest-book-xi-calculating-planetary-longitude\/\">Calculating Planetary Longitudes<\/a><\/li>\r\n<\/ul>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Book XII<\/strong><\/span><\/p>\r\n<p><strong>Chapter 1\u00a0&#8211; On the Preliminaries for the Retrogradations<\/strong><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2025\/04\/almagest-book-xii-preliminary-lemma-from-apollonius\/\">Preliminary Lemma from Apollonius<\/a><\/li>\r\n<\/ul>\r\n<p>&nbsp;<\/p>\r\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><strong>Reference Posts<\/strong><\/span><\/p>\r\n<ul>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/index.php\/2018\/05\/21\/the-almagest-book-1-sexagesimal\/\">Sexagesimal and Ptolemy&#8217;s Math<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2018\/06\/introduction-to-the-celestial-sphere-astronomical-coordinates\/\">Introduction to the Celestial Sphere and Astronomical Coordinates<\/a><\/li>\r\n<li><a href=\"https:\/\/jonvoisey.net\/blog\/2019\/05\/on-chronology-and-calendars-in-the-almagest\/\">On Chronology and Calendars<\/a><\/li>\r\n<\/ul>\r\n","protected":false},"excerpt":{"rendered":"<p>To help keep track of my working through the Almagest, below is an index of posts, grouped by book and chapter.\u00a0<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[24],"tags":[25,14],"class_list":["post-368","post","type-post","status-publish","format-standard","hentry","category-almagest","tag-almagest","tag-ptolemy"],"acf":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9ZpvC-5W","_links":{"self":[{"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/posts\/368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/comments?post=368"}],"version-history":[{"count":194,"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/posts\/368\/revisions"}],"predecessor-version":[{"id":5276,"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/posts\/368\/revisions\/5276"}],"wp:attachment":[{"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/media?parent=368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/categories?post=368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jonvoisey.net\/blog\/wp-json\/wp\/v2\/tags?post=368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}