Chapter

Chapter Eight

Alan C. Bowen and Robert B. Todd

in Cleomedes' Lectures on Astronomy

Published by University of California Press

Published in print January 2004 | ISBN: 9780520233256
Published online March 2012 | e-ISBN: 9780520928510 | DOI: http://dx.doi.org/10.1525/california/9780520233256.003.0009
Chapter Eight

Show Summary Details

Preview

This chapter shows that the size of the Earth is discountable in observations of all heavenly bodies except the Moon. The Earth must have the ratio of a center to the whole cosmos. Sundials also offer a major proof that the Earth has the ratio of a center to the heliacal sphere, since the shadow of the Earth revolves along with the Sun. So while the Earth has the ratio of a point to the height of the Sun, some use other arguments to establish that it does not have the ratio of a point to the sphere of the Moon. The Sun's approach and its subsequent withdrawal are identified with respect to its relation to the zenith.

Keywords: size; Earth; heavenly bodies; cosmos; heliacal sphere; Sun; Moon

Chapter.  4060 words. 

Subjects: Classical Philosophy

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.