This lot includes three detailed celestial charts concerning the movement of the moon, sun and earth:

A. Phases et Mouvemens de la Lune, dated 1839. This chart focuses on the eight lunar phases. There are additional charts in the sheet's corners illustrating the duration of the moon's revolutions (top left), the diurnal motion of the moon (top right), a lunar epicycle (bottom left), the inclination and movement of the moon in relation to the sun and earth (bottom right), and lunar eclipse (also bottom right). Condition: On a sturdy sheet with scattered foxing. (B)

B. Mouvemens Apparens du Soleil, Theorie des Saisons, dated 1840. This colorful representation shows the seasonal movement of the Earth around the sun during the year, with hemispherical insets at the corners to show the movement of the Earth on a daily and yearly basis. Condition: Light scattered foxing, primarily within the text at bottom. (B+)

C. Revolution Annuelle de la Terre Autour du Soleil, dated 1840. This handsome chart illustrates the movement of the earth around the sun during each month of the year. The decorative title is flanked by two more diagrams: one explains Kepler's theory of elliptical orbits, the other shows the movement of the sun throughout the day. Condition: Light scattered foxing. (B+)

The illustrations are surrounded by related French text. Drawn by E. Soulier.

References:

Condition:

See description above.