Ancient Astronomy Chapter 3

Fig. 3.2

Fig. 3.3

Fig. 3.4

Fig. 3.5 Pythagorean Model

Fig. 3.6 Eudoxus’s Model

Aristotle’s argument that the earth must be a sphere Fig. 3.7 Aristotle’s argument that the earth must be a sphere

Fig. 3.8

Aristarchus’s (310-230 B.C) Calculation Fig. 3.9 Aristarchus’s (310-230 B.C) Calculation of Moon’s diameter and distance from Earth

Fig. 3.10 Small angle formula

Fig. 3.11

Fig. 3.12

Fig. 3.13

Eratosthenes’s (276-195 B.C) calculation of the earth’s radius Fig. 3.14 Eratosthenes’s (276-195 B.C) calculation of the earth’s radius

Precession of the earth’s axis (Hipparchus (134 B.C) Fig. 3.15 Precession of the earth’s axis (Hipparchus (134 B.C)

Precession of the celestial equator Fig. 3.16 Precession of the celestial equator

Fig. 3.17 Ptolemy’s model

Fig. 3.18 The Geocentric Model

Fig. 3.19