Celestial Sphere, Poles, and Equator and Relation to Earth S Poles and Equator, Concept
- Celestial sphere, poles, and equator and relation to Earth’s poles and equator, concept of direction (north, east, south and west)
- What an observer sees, horizon, zenith, celestial meridian; altitude and latitude, daily (diurnal) motion in different parts of sky and different latitudes
- Sun's annual motion: evidence, path around ecliptic; equinoxes and solstices, their meanings, their approximate dates, and Sun's noon altitude; Sun’s diurnal (daily) motion rising and setting points through year for observer’s at different latitudes
- Equatorial coordinates: hour angle, right ascension and declination, units
- Time keeping, apparent solar time, mean solar time, sidereal time
- Sidereal year vs. tropical year, precession and its effects; heliacal rising of stars
- Moon's phases and time of day; its motion relative to stars, ascending and descending nodes; synodic, sidereal, and nodical (draconic) months, relative lengths and why, regression of nodes, lunar major and minor standstills
- Inferior and superior planets, configurations, transits, motions on celestial sphere and retrograde motion, synodicvs. sidereal periods, heliacal rising of planets
- Stonehenge: megalith; main elements, possible alignments, Stonehenge Decoded and Aubrey holes; considerations for astronomical identifications generally; probable use
- Newgrange: alignment, probable use
- Inca: Coricancha symbolism and alignment; Pleiades heliacal rising; ceque system, huacas, social and spatial organization, and calendar; Cerro Picchu and planting, antizenith (nadir) sunsets
- Maya: building alignments, vigesimal number system, calendars and astronomical connections, Dresden Codex, heliacal rising of Venus and significance
- Native American astronomy: medicine wheels, Hopi Soyal ceremony
- Celestial navigation by Pacific Islanders
- Instruments: gnomon, zenith tube; backsight and foresight, baseline and accuracy
- Egyptian calendars, Sothis period; decans, time of night; pyramid alignments
- early Chinese astronomy -- lifa and tianwen as state functions; lunisolar calendar; recognition of periodicities; astrology: idea of disorder in heavens caused by misrule or disruptions on Earth; Shih Shen, early star catalogue; GuoShou-jing -- obliquity, length of year; extensive records of comets and "guest stars" (novae and supernovae) like that of 1054 AD
- early Babylonians -- cuneiform, sexagesimal number system
- Babylonians -- earliest document Venus tablet, observation of Moon and planets over extended period for astrology (state, not individual), recognition of periodicities in lunar and planetary phenomena, creation of ephemerides; motion in longitude of Sun, Moon, planets approximated, including zigzag (Kidinnu); saros and Saros-Canon, predictions of lunar eclipses
- Babylonian calendars -- basic problem of lunar vs. annual, intercalation; 8-yr cycle, Metonic cycle
- Thales -- cosmos as object of contemplation; flat Earth under domed sky; solar eclipse "prediction"
- Pythagoras and his school: numerology; spherical Earth, Moon, Sun; "music of the spheres;" Philolaus's cosmology
- Plato -- distrust of appearances, use reason to find forms; image of concentric spheres with planets
- Eudoxus -- mathematical model: concentric spheres centered on Earth, hippopede; problems
- Aristotle -- geocentric physical model based on Eudoxus; arguments for spherical Earth; argument of fall; argument against Earth's orbiting Sun; quintaessentia and immutability; ideas about comets and meteors; ideas about motion; approximate date
- Heraclides -- Earth's rotation; Mercury and Venus orbit Sun
- Aristarchus -- Hellenistic astronomy; relative distances of Sun and Moon; dimensions of Sun and Moon relative to Earth; heliocentric model; approximate date
- Eratosthenes -- position; circumference of Earth
- Hipparchus -- star catalogue with celestial longitudes and latitudes, magnitudes; discovery of precession; inequality of seasons and Sun's orbit; Moon's orbit; Moon's geocentric parallax; accurate lengths of various kinds of months and of year; approximate date
- Ptolemy -- geocentric model using epicycles (Apollonius), equant and other problems; Matematikesyntaxis and Tetrabiblos: tables for predicting positions of Sun, Moon, planets; refinement and extension of Hipparchus's work, including geocentric parallaxes of Sun and Moon; astrology; Planetary Hypotheses; approximate date
- importance of astronomy in Islamic lands -- calendar, timekeeping (muwaqqit), direction to Mecca (qibla), astrology (zij)
- Caliph al-Ma'mun and the House of Wisdom, al-Khwarizmi, translation -- Almagest, approximate date
- Thabitibn-Qurra -- critic of Ptolemy, trepidation (based on erroneous data)
- Muhammad al-Battani (Albategnius) -- introduction of sines, spherical trigonometry; improved Ptolemaic model, especially solar orbit
- Abd al-Rahman al-Sufi -- used Ptolemy's catalogue with improved magnitudes for star maps -- Book on Constellations of Fixed Stars
- Abd al-RahmanIbnYunus -- observer, large instruments; Hakemite Tables included observations of eclipses and conjunctions; fairly good value for atmospheric refraction
- Ibn al-Haytham (Alhazen) -- critic of Ptolemy, On the Configuration of the World; book on optics
- Nasir al-Din al-Tusi -- Maragha Observatory, revised Ptolemy's model of motion in latitude; eliminated equant by using two extra epicycles; eliminated eccentric; Ilkhanic Tables
- Ibn al-Shatir -- eliminated equant by introducing extra epicycle; refined Moon's motion
- Ulugh Beg -- Samarkand Observatory; star catalogue with newly-measured positions
- Ibn al-Zarqala (Arzachel) -- Toledo Tables
- Alfonsine Tables -- origin of name; Isaac ben Said and Jehudaben Moses Cohen; precession and trepidation; significance; approximate date
- ecliptic coordinates: definitions, units
- naked-eye instruments -- gnomon; armillary sphere (equatorial and zodiacal); astrolabe; mural quadrant, hand-held quadrant; triquetrum (three-staff)
- Medieval criticism of Aristotle's theory of motion -- Buridan, Oresme; impetus, argument of fall
- Sacrobosco (John of Holywood) -- medieval texts on astronomy, esp. Tractatus de sphaera
- dichotomy both in Islamic thought and in late medieval cosmology -- Aristotle vs. Ptolemy
- Georg Peurbach (or Purbach) -- New Theory of the Planets, Epitome of Ptolemy (with Regiomontanus)
- Regiomontanus (Johannes Mueller) -- pupil of Peurbach; Epitome (with Peurbach); Ephemerides
- Bernhard Walther -- pupil of Regiomontanus; extensive series of fairly accurate observations; rediscovered atmospheric refraction
- Nicolaus Copernicus -- background; dissatisfaction with Ptolemaic model; Brief Commentary, On the Revolutions and his model, true place of Sun; roles of Rheticus (Georg Joachim) and Osiander; significance; approximate date
- Erasmus Reinhold -- Prutenic Tables
- Tycho Brahe -- background; "new star" of 1572 and comet of 1577; observations from Uraniborg and Stjerneborg; treatment of refraction; Tychonic theory
- Johannes Kepler -- background; Cosmographic Mystery, New Astronomy; Survey of Copernican Astronomy and Harmony of the World, laws of planetary motion; Rudolphine Tables; approximate date
- Galileo Galilei -- background; correspondence with Kepler; Starry Messenger and discoveries with telescope; Letter to Grand Duchess Christina and consequences; Dialogue on the Two Great World Systems and consequences; Discourses on Two New Sciences
- Francis Bacon: experimental philosophy, inductive method; New Atlantis, organization of science; practical application of science
- Rene Descartes: critical doubt; deductive method and use of reason, Principles of Philosophy, plenum, vortices, theory of comets, infinite universe
- scientific societies -- AccademiadeiLincei and Accademia del Cimento (Italy), Royal Society (England) and Robert Hooke, Academie des Sciences (France); publications
- Christiaan Huygens: "aerial" telescope; Saturn's rings and large satellite; centripetal force; pendulum clock
- G. D. Cassini: first director Paris Observatory, 4 small satellites of Saturn, Cassini Division
- Hevelius: lunar map; accurate positions without telescope, dispute with Hooke
- Newton: origin; calculus (ind. Leibniz); optics -- dispersion into colors; Philosophiaenaturalis principia mathematica: methodology, laws of motion, universal gravitation, two-body problem, Moon's motion including regression, Earth's oblateness, tides, precession, test of vortex theory; approximate date
- Halley: role in publication of Principia; Southern Hemisphere stars; second Astronomer Royal; comet orbits; proper motions of stars
- Flamsteed: first Astronomer Royal, Royal Greenwich Observatory; Britannic History of the Heavens (star catalogue)
- Roemer: speed of light from eclipses of Jupiter's satellites, right ascension and declination at transit
- shape of Earth -- oblate vs. prolate, measurements of degree of latitude -- Bouguer and La Condamine, Maupertuis
- Bradley: third Astronomer Royal; aberration of starlight; nutation
- naked-eye instruments -- cross-staff (Levi benGerson), nocturnal; Brahe's innovations
- telescopes -- Galilean refractor, Kepler (astronomical) refractor, and their respective advantages and disadvantages; reflector (Newton, Cassegrain) and its advantages and disadvantages; zenith sector, transit telescope
- chromatic and spherical aberration