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Conjunction Opposition Greatest Elongation Retrograde Prograde Superior Planet Inferior Planet Geocentric Heliocentric D PowerPoint Presentation
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Conjunction Opposition Greatest Elongation Retrograde Prograde Superior Planet Inferior Planet Geocentric Heliocentric Deferent Epicycle. +. +. Conjunction. Opposition. +. Inferior Never Far From Sun Greatest Elongation Conjunction Retrograde at every other Conjunction.

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Presentation Transcript
slide1

Conjunction

Opposition

Greatest Elongation

Retrograde

Prograde

Superior Planet

Inferior Planet

Geocentric

Heliocentric

Deferent

Epicycle

slide4

Inferior

Never Far From Sun

Greatest Elongation

Conjunction

Retrograde at every other Conjunction

Superior

Opposition

Conjunction

Retrograde at every Opposition

ancient astronomy
Planets

Retrograde

Prograde

Heliocentric

Geocentric

Ancient Astronomy

Sun/Moon/Earth

Phases

Eclipses

Solar

Lunar

theories
Theories

Geocentric

Earth at Center

Heliocentric

Sun at Center

geocentric
Geocentric

Model by Hipparchus

Improved by Ptolomy

Deferents Epicycles

hipparchus9
Hipparchus

+

Deferent

hipparchus10
Hipparchus

+

Deferent

hipparchus11
Hipparchus

Epicycle

+

Deferent

hipparchus12
Hipparchus

Epicycle

+

Deferent

hipparchus13
Hipparchus

Epicycle

+

Deferent

hipparchus14
Hipparchus

Epicycle

+

Deferent

hipparchus15
Hipparchus

Epicycle

+

Deferent

hipparchus16
Hipparchus

Epicycle

+

Deferent

hipparchus17
Hipparchus

Epicycle

+

Deferent

hipparchus18
Hipparchus

Epicycle

+

Deferent

hipparchus19
Hipparchus

Epicycle

+

Deferent

hipparchus20
Hipparchus

Epicycle

+

Deferent

hipparchus21
Hipparchus

Epicycle

+

Deferent

hipparchus22
Hipparchus

Epicycle

+

Deferent

hipparchus23
Hipparchus

Prograde

+

Retrograde

hipparchus24
Hipparchus

Prograde

+

Retrograde

inferior planets
Inferior Planets

Inferior Epicycles Tied Between Earth and Sun

+

¤

inferior planets26
Inferior Planets

Inferior Epicycles Tied Between Earth and Sun

+

¤

inferior planets27

+

Inferior Planets

Inferior Epicycles Tied Between Earth and Sun

¤

inferior planets28
Inferior Planets

Retrograde at One Conjunction

Prograde at Other Conjunction

+

¤

superior planets
Superior Planets

¤

+

Retrograde at Opposition if Timed Right

This one is timed wrong.

superior planets30
Superior Planets

+

Retrograde at Opposition if Timed Right

This one is timed right.

¤

ptolomy
Ptolomy

Earth is not at the center of deferents.

+

¤

heliocentric
Heliocentric

Superior planets orbit farther from the sun, and slower.

Inferior planets orbit closer to the sun, and faster.

¤

Å

heliocentric34
Heliocentric

Clockwise is retrograde.

¤

Å

Conjunction

heliocentric35
Heliocentric

Counterclockwise is prograde.

Conjunction

¤

Å

heliocentric38
Heliocentric

Clockwise is retrograde.

¤

Å

Opposition

heliocentric39
Heliocentric

Counterclockwise is prograde.

¤

Å

Conjunction

aristotle
Aristotle

Proved Heliocentric Model Wrong

Proved Earth Does Not Orbit Sun

Proved Earth Does Not Move

Phases of the Moon

Moon is a Sphere

Moon orbits Earth

Moon closer than Sun

Moon gets light from Sun

Earth is a Sphere

Lunar Eclipses

Altitude of Polaris

parallax
Parallax

Parallax is the apparent motion of something, caused by the motion of the observer.

parallax42
Parallax

Å

¤

Å

aristotle43
Aristotle

Earth Corrupt and Changeable

Beyond Earth

Perfect and Unchangeable

Law of Motion

Force Required to Keep Things Moving

What keeps arrows in flight?

ancient astronomy44
Planets

Retrograde

Prograde

Heliocentric

Geocentric

Ancient Astronomy

Sun/Moon/Earth

Phases

Eclipses

Solar

Lunar