_The_ INTRODUCTION: _Containing a brief Account of the
Solar System, and of the Fixed Stars_.
SECT. I. _Of the Order and Periods of the Primary Planets
revolving about the Sun; and of the Secondary
Planets round their respective Primaries._
——— _Of the Primary Planets_ 1
——— _Of the Secondary Planets_ 5
——— _Of the Annual and Diurnal Motion of the Planets_ 7
——— _That the Planets are Opaque and Globular_ 9
——— _That the Earth is placed betwixt the Orbits of_
Mars _and_ Venus ibid.
——— _That the Planets turn round the Sun_ ibid.
——— _That the Earth also turns round the Sun_ 15
——— _How the Annual and Diurnal Motion of the Planets
are computed_ ibid.
——— _How the relative Distance of the Planets from the
Sun are determined_ 18
——— _How their absolute Distances from the Sun are computed_ 23
——— _How the Magnitudes of the Planets are determined_ 26
——— _Why the Moon appears bigger than any of the Planets_ 27
——— _A Table of the Distances, Magnitudes, Periodical,
and Diurnal Revolutions of the Planets_ 28
——— _Of Comets_ 29