Pioneers in Astronomy from Ptolemy to Neptune Discovery

Pioneers in Astronomy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Uraniborg, Tycho Brahe’s Observatory

Ptolemy ,[object Object],[object Object],[object Object]

Ptolemaic System http://www.thebigview.com/spacetime

Retrograde Mars (2003) http://zuserver2.star.ucl.ac.uk/~apod/apod/ap031216.html

Retrograde Planetary Motion ,[object Object],[object Object],[object Object],[object Object]

Nicholas Copernicus ,[object Object],[object Object]

Copernican Revolution ,[object Object]

Heliocentric Explanation ,[object Object]

Tycho Brahe ,[object Object],[object Object]

Tycho’s System ,[object Object],[object Object],http://media4.obspm.fr/public/IUFM/images/13Kepler/images/ticho_brahe.png

Johannes Kepler ,[object Object]

Kepler’s First Law ,[object Object]

Close and Far ,[object Object],[object Object],[object Object],[object Object],[object Object]

Kepler’s Second Law ,[object Object],[object Object],[object Object]

Equal Areas Planet moves faster in its orbit when closer to the Sun. Planet moves slower in its orbit when farther away from the Sun.

Kepler’s First & Second Laws ,[object Object]

Kepler’s Third Law (Harmonic, 1619) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Galileo ,[object Object],[object Object]

Moons of Jupiter (Galileo, 1610)

Isaac Newton ,[object Object],[object Object],[object Object],[object Object],[object Object]

Newton’s First Law ,[object Object],[object Object]

Newton’s Second Law ,[object Object],[object Object],[object Object],[object Object]

Newton’s Third Law ,[object Object],[object Object],[object Object]

Law of Gravity ,[object Object],[object Object]

Conic Sections ,[object Object],[object Object],[object Object]

Comet & Planetary Orbits ,[object Object],[object Object]

Edmond Halley ,[object Object],[object Object],[object Object],[object Object]

Comet Halley Portion of Bayeux Tapestry, 1066 Comet Halley in 1986, Milky Way in upper right

Le Verrier and Adams ,[object Object],[object Object],[object Object],Le Verrier (left) & Adams

Neptune’s Positions 1-degree equals the width of an oustretched fingertip

Inferior & Superior ,[object Object],[object Object],[object Object],[object Object],[object Object]

Inferior Planets ,[object Object],[object Object],[object Object]

Superior Planets ,[object Object],[object Object]

Pioneers in Astronomy from Ptolemy to Neptune Discovery

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Pioneers in Astronomy from Ptolemy to Neptune Discovery