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The description and use of the globes and the orrery. To which is prefix'd, by way of introduction, a brief account of the solar system / by Joseph Harris
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The C O N T E N f S.

Prob. XXIX. The Latitude of the Sun's Place andhis Azimuth being given ; to find his Altitude and

the Hour ------ 129

Prob. XXX. The Latitude, the Suns Altitude , andhis Azimuth, being given ; to find his Place in the

Ecliptick, and the Hour 1 1130

Prob. XXXI. The Declination and Meridian Al-titude of the Sun, or of any Star , being given ; tofind the Latitude of the Place ibid.

Prob. XXXII. The Day and Hour of a LunarEclipse being known ; to find all thofePlaces upon theGlobe, in which the fame will be visible - -131Prob. XXXIII. The Day of the Months and Hourof the Day , according to our way of reckoning inEngland, being given-, to find thereby the Babylo-nick, Italick, and the Jewish or Judaical Hour 132Prob. XXXIV. To find the Right Ascension and De-clination of the Sun or any Fixed Star - r 33

Prob. XXXV. To find the Longitude and Latitude

of a given Star .. ----- ~ .135

Prob. XXXVI. The Latitude of the Place,the Dayof the Month, and the Hour being given ; to findwhat Stars are then Rising and Setting-, what Starsare Culminating or on the Meridian, and the Alti-tude and Azimuth of any Star above the Horizon ;and also how to distinguish the Stars in the Heavensone from the other, and to know them by their proper

Names --- - - -136

Prob. XXXVII. The Latitude of the Place beinggiven ; to find the Amplitude , Oblique Ascensionand Descenfion, Ascensional Difference, Semi-Di-urnal Arch, and the Time of Continuance above theHorizon of any given Point in the Heavens 139Prob. XXXVIII. The Latitude and the Day of theMonth being given-, to find the Hour when any known Star will be on the Meridian, and also the

Time of its Rising and Setting - . . 141

Prob. XXXIX. To find at what Time of the Year agiven Star will be upon the Meridian , at a given

Hour of the Night -- -. . .. -142

Prob. XL. The Day of the Month, and the Azi-muth of any known Star being given ; to find theHour of the Night . ibid.

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