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Problem
Page
31. To find thofe Places to which the Sun is
vertical on any given Day.
32. To find on what Days of the Year the Sun
will be vertical to any given Place in
the Torrid Zone :
33.
65
66
To find thofe Places to which the Sun is
vertical on any propofed Day and Hour 68
34. To find where the Sun is rifing, fetting,
&c. &c.
35. To obferve the Occafion of the Variety in
70
the Length of the Days and Nights... 71
36. To find on what Day the Sun begins to
fhine conftantly in either of the Frigid
Zones..
37.
To find the Latitude of thofe Places where
the Sun begins to fine conftantly. ...
38. To find in what Parallel of Latitude the
Sun does not fet for any affigned Number
of Days.....
39. To find the Distance between any two
Places on the Globe...
40. To find the Angle of Pofition between any
two Places
41. To find the Bearing of one Place from
another
42. To find how many Miles make a Degree of
Longitude in any given Parallel of La-
titude
73
74
75
ib.
77
79
81
43. To find the Antæci of any given Place.. 83
44. To find the Periæci of any propofed Place 84
45. To find the Antipodes of any affigned Place
46. To find at what Place it is Twilight at
any given Time...
47. To find when the Morning Twilight be-
gins, &c......
48. To find the Duration of Twilight at the
North Pole
49. To find all thofe Places in which a Solar
Eclipfe will be vifible.
50. To find all thofe Places in which a Lunar
Eclipfe will be visible...
51. To find in what Latitude the longest Day.
is of any given Length....
52. To place the Globe in the Situation of the
Earth with Refpect to the Sun, at the
Time of the Summer Solstice....
53. To place the Globe in the Situation of the
Earth at the Time of the Winter Sol-
ftice......
85
87
92
93
97
104
106
107
108
OF THE CELESTIAL GLOBE.
Explanation of the Conftellations, &c...110 to 246
Definitions relating to the Celestial Globe.247 to 253
PROBLEMS
PROBLEMS ON THE CELESTIAL GLOBE.
54.
To find the Declination of a fixed Star.. 254
55. To find the right Afcenfion of the Sun, or
any fixed Star....
255
56. To find any Star on the Globe, by having
its Declination and right Afcenfion given 256
To find the Latitude and Longitude of a
57.
Star
....
...
257
c. 259
260
58. To find at what Hour any Star rifes,
59. To find the Sun's oblique Afcenfion..
60. To find the Sun's afcenfimal Difference.. 261
61. To find the Sun's Amplitude
262
62. To find the Sun's Azimuth
264
63. To find the Hour of the Day, the Lati-
tude, &c. being given.
265
64. To find the Day of the Month, the Sun's
Declination being given
266
65. The Sun's meridian Altitude on any Day
being given, to find the Latitude of the
Place of Obfervation
66. To find the Sun's Depreffion below the
Horizon...
267
268
270
272
67. To find the Hour of the Night.......
68, To find at what Hour any Star will be
on the Meridian
69. To find on what Day a given Star will
come to the Meridian at any proposed
Hour.
70. The Latitude of a Place being given, to
find the Point of the Ecliptic rifing or
fetting with any known Star
.....
71. To find when any Star will rife or fet
cofmically..
72. To find when a Star will rife or fet
acronically
73. To find what Stars rife and set acronically
on any particular Day
74. To determine the Time that a Star rijes
and fets heliacally...
75. To find when a Star comes to the Meridian
275
277
280
282
283
284
286
with the Sun
76. To find what Time of the Year a Star is
upon the Meridian at Midnight............
77. In a given Latitude, Day of the Year,
and Hour of the Night, to find the La-
titude and Azimuth of a propofed Star. 287
78. From the obferved Altitude of a Star, to
find the Hour of the Night..
288
289
79. From the observed Hour and Minute of a
Star's rifing or fetting on a given Day,
to find the Latitude of the Place.....
80. From an Obfervation of two known Stars
being upon the fame Azimuth in a given
Latitude, to find the Hour of the Night 290
81. From
81.
From an Obfervation of two known Stars
having the fame Altitude on a given
Day, to find the Hour of the Night... 291
82. From an Obfervation of a known Star an
the Meridian, and another in the Eaft
or Weft Part of the Horizon, to find
the Latitude of the Place
83. From the observed Altitude of two Stars
on a given Azimuth, to find the Latitude
of the Place ....
84. To find the perpetual Apparition or Qccul-
tation of the Stars.....
292
293
294
85. To represent the Face of the Heavens.... 295
86. To fhew the Correspondence between the
Celeftial and Terrestrial Regions, as
delineated in the ingenious Poem Ev-
DOSIA....
87. To shew what Places pass under any
propofed Star, &c.....
OF THE MOON..
.303 to 312
312
88. To prepare the Globe for folving fome
Lunar Problems
89. To find the Nodes of the Moon's Orbit... 314
90. To align the Orbit of the Moon its proper
91.
Pofition in the Heavens for any Time.. ib.
To find the Moon's diurnal Motion in the
Ecliptic for any given Day
315