viii

The CONTENTS.

PiyiB. XLI. Two known Stars having the fame Azi*-

math, or the fame Height , being given ; to find the

Hour of the Night -—-- 144

Prob. XLII. The Latitude , Day of the Months andthe Altitude of any known Star, being given ; to

find the Hour of the Night --145

Prob. XLIII. Having the Latitude of the Place, tofind the Degree of the Ediptick, which rises orsets with a given Star-, and from thence to deter-mine the Time of its Cosmical and Acronical Ri-sing and Setting -‘-146

Prob. XLIV. Having the Latitude of the Placesto find the Time when a Star rises and sets Helia i

cally-—-'— -147

Prob. XLV. To find the Place of any Planet uponthe Globe ; so by that means, to find its Place inthe Heavens .* also to find at what Hour any Planetwill rife or set, or be on the Meridian, at any Day

in the Year-

148

Prob. XLVI. To find all that Space upon the Earth,where an Eclipse of one of the Satellites of Jupitef

will be visible-

150

The Description cf the Orrery - , — 152

Of the Motions of the Planets in general —-157

Of the Stations and Retrogradationsof the PlanetsiboOf the Annual and Diurnal Motion of the Earth 167Of the Phases of the Moon, and of her Motion in her

Orbit ■ 1 ■ . - ■■ » ■■ >

Of the Eclipses of the Sun and Moon-Of the Eclipses of J upiter’f Satellites

in

in