TABLE OF CONTENTS.
CHAPTER I.
The Moon ’s Distance, Size, and Mass.
Page
Introduction . 1
Order in which lunar phenomena were probably discovered 2Determination of the moon’s distance ... ... ... 6
Measuring distance of an inaccessible object ... ... 8
Moon ’s distance determined from a fixed station ... ... 10
Method depending on observations at distant stations ... 19
Various results obtained by these methods ... ... 22
Moon ’s distance determined from her motions ... ... 24
Results by this method . 25
Moon ’s varying distance ... . ... ... 27
Moon ’s apparent diameter ... ... ... ... ... 28
Her real diameter, surface, and volume . 30
Her varying apparent size ... ... . ... 32
The moon’s mass determined in various ways ... ... 34