Sundial

INTRODUCTION
- Man and the stars
SECTION I
- The dawn of astronomy: Mesopotamia, Egypt and the Biblical Cosmos
SECTION II
- The cosmos becomes a sphere
SECTION III
- The geometry of the cosmos
SECTION IV
- The skies of Islam
SECTION V
- Evangelisation of the cosmos
SECTION VI
- The Renaissance of Astronomy
SECTION VII
- Galileo: the cosmos through the telescope
SECTION VIII
- From Galileo to Newton

Plate with signs of the zodiac and planets

Zoom

Sundial
Cast from the original, ca. 1929
Rome, Museo della Civiltà Romana, inv. M.C.R. n. 2897

A band with the signs of the zodiac runs along the edge of the clock. Its inner surface is divided into 12 equal segments to determine the 12 hours of the day, by means of a "style", according to the latitude and the given period of the year.