THEORY DEMONSTRATING

THE MOTION OF THE MOON THROUGH ITS EPICYCLE AND ECCENTRIC.

A detailed, hand-colored astronomical diagram illustrating the lunar theory of epicycles and eccentrics. The central figure is a large circular chart divided by a vertical "LINE OF THE APOGEE" and a horizontal "LINE OF MEAN LONGITUDES". Around the central Earth, eight lunar epicycles (numbered I to VIII) show the phases of the moon, from the New Moon to the Full Moon. The chart is enclosed within a zodiac ring featuring illustrations of the twelve signs. The corners are decorated with colorful putti in clouds holding the title banners. Two smaller inset diagrams are located in the bottom corners, one showing lunar phases and the other showing the geometric relationship between the eccentric and the epicycle.

MOTION OF THE CENTER OF THE EPICYCLE IN CONSEQUENCE REGULARLY AROUND THE CENTER OF THE EARTH EACH DAY 13 DEGREES 11 MINUTES.

MOTION OF THE APOGEE IN ANTECEDENCE REGULARLY AROUND THE CENTER OF THE EARTH EACH DAY 11 MINUTES 12 SECONDS 11 MINUTES 12 SECONDS.

LINE OF THE APOGEE

LINE OF MEAN LONGITUDES

DISTANCE OF THE CENTER FROM THE APOGEE

ELONGATION OF THE MOON FROM THE SUN

EPICYCLE I
NEW MOON CONJUNCTION WITH THE SUN
APOGEE OF THE ECCENTRIC CENTER OF THE EPICYCLE

EPICYCLE II
CRESCENT MOON
MAX. Prosthaphaeresis of the Moon at the Apogee

EPICYCLE III
HALF MOON
LINE OF MOTION

EPICYCLE IV
GIBBOUS MOON
MAX. Prosthaphaeresis of the Moon at the Perigee

EPICYCLE V
FULL MOON IN OPPOSITION TO THE SUN
PERIGEE OF THE ECCENTRIC CENTER OF THE EPICYCLE

EPICYCLE VI
GIBBOUS MOON

EPICYCLE VII
HALF MOON
CENTER OF THE EPICYCLE

EPICYCLE VIII
CRESCENT MOON

Bottom-left inset diagram: A small circular chart showing the moon's phases relative to the sun, with labels for "CONJUNCTION", "HALF MOON", "GIBBOUS MOON", and "FULL MOON".

Bottom-right inset diagram: A small geometric chart illustrating the "ECCENTRIC" and "EPICYCLE" paths, with labeled points for "APOGEE", "PERIGEE", "CENTER OF THE WORLD", and "CENTER OF THE ECCENTRIC".