A Compendious Treatise on the Use of the Globes, and of Maps: Compiled from the Works of Keith, Ferguson, Adams, Hutton, Bryan, Goldsmith, and Other Eminent Authors; Being a Plain and Comprehensive Introduction to the Practical Knowledge of Geography and Astronomy ...J. W. Burditt and Company and W. Wells, Court street., 1812 - 183 σελίδες |
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Σελίδα 9
... hour circle 69 20 Equinoctial 53 19 · 00 points 97 24 F. Fixed stars 191 .. their apparent motion 192 · their magnitudes 197 distances 198 .. number 199 Foci - see note 39 福好湯湯豆 ib . 44 ... Hour circle line , six o'clock Def . Page . 9.
... hour circle 69 20 Equinoctial 53 19 · 00 points 97 24 F. Fixed stars 191 .. their apparent motion 192 · their magnitudes 197 distances 198 .. number 199 Foci - see note 39 福好湯湯豆 ib . 44 ... Hour circle line , six o'clock Def . Page . 9.
Σελίδα 10
... Hour circle line , six o'clock Def . Page . 68 20 184 38 185 ib . 1 . Inhabitants of the globe , how many Island Isthmus Juno Jupiter Lake Land , consists of 82280 33 21 23 ib . 302 73 304 ib 64429 16 15 L. 29 15 19 14 105 25 56 1 13 5 ...
... Hour circle line , six o'clock Def . Page . 68 20 184 38 185 ib . 1 . Inhabitants of the globe , how many Island Isthmus Juno Jupiter Lake Land , consists of 82280 33 21 23 ib . 302 73 304 ib 64429 16 15 L. 29 15 19 14 105 25 56 1 13 5 ...
Σελίδα 19
... circle of the earth , equidistant from the poles , and divides the globe ... hours each . 56. The first meridian , is that from which ge- ographers begin ... circles , extending from the north to the south pole , and cutting the equator ...
... circle of the earth , equidistant from the poles , and divides the globe ... hours each . 56. The first meridian , is that from which ge- ographers begin ... circles , extending from the north to the south pole , and cutting the equator ...
Σελίδα 20
... hour circle on artificial globes , is a small circle of brass , with an index fixed to the north pole . This circle is divided into twenty- four equal parts , correspondent to the hours of the day ; and these again are subdivided inte ...
... hour circle on artificial globes , is a small circle of brass , with an index fixed to the north pole . This circle is divided into twenty- four equal parts , correspondent to the hours of the day ; and these again are subdivided inte ...
Σελίδα 38
... circle , passing through the centre of the object and the north or south points of the hori- zon . The azimuth of the sun , at any particular hour , is used at sea for finding the variation of the compass . 184. Hour or horary circles ...
... circle , passing through the centre of the object and the north or south points of the hori- zon . The azimuth of the sun , at any particular hour , is used at sea for finding the variation of the compass . 184. Hour or horary circles ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
21st of June Aldebaran amplitude Analemma Answer appears Arcturus axis azimuth brass meridian Bring the given Cape celestial globe centre circle to twelve compasses constellation descension distance diurnal earth eastern eastward ecliptic Elevate the pole ephemeris equal equator Examples find the latitude find the sun's frigid zone given day given place given star globe westward grees heavens horizon hour circle index has passed inhabitants Jupiter latitude latitude and longitude length Libra London longest day longitude mark meridian altitude minutes month moon's morning motion node north latitude north or south north pole number of degrees o'clock oblique ascension observe orbit parallel of latitude past noon point Aries PROBLEM quadrant of altitude reckoning right ascension rise and set RULE set the index shew signs solar south pole sun is vertical sun rises sun's altitude sun's declination sun's place torrid zone tude turn the globe twilight Venus western edge zenith
Δημοφιλή αποσπάσματα
Σελίδα 52 - In this case, it is obvious that the plane of the circle of illumination would be perpendicular to a line drawn from the centre of the sun to the centre of the earth...
Σελίδα 128 - Elevate the globe to so many degrees above the horizon as are equal to the latitude of the place...
Σελίδα 37 - The PRIME VERTICAL is that azimuth circle which passes through the east and west points of the horizon, and is always at right angles...
Σελίδα 168 - Problem 12 : ihen elevate the pole as many degrees above the horizon as are equal to the latitude of that place, and bring it to the brass meridian ; so will it then be the zenith or centre of the horizon.
Σελίδα 136 - Pisces to the eastern edge of the horizon, and set the index to 12 ; turn the globe westward till the other marks successively come to the horizon, and observe the hours passed over by the index ; the intervals of time between the marks coming to the horizon will show the diurnal difference of time between the moon's rising.
Σελίδα 168 - Find the longitude of the given place on the equator, bring it to that part of the brass meridian which is numbered from the equator towards the poles ; and then, under the given latitude, on the brass meridian, you will find the place required.
Σελίδα 88 - Bring the given place to that part of the brass meridian which is numbered from the north pole towards the equator, and observe its distance in degrees from the pole ; count the same number of degrees on the brass meridian from the equator towards the...
Σελίδα 155 - Rectify the globe for the latitude of the place, find the sun's place in the ecliptic and bring it to the brass meridian, and set the index of the hour circle to 12. Turn the globe westward till the sun's place comes to the...
Σελίδα 157 - LXV.) ; bring this place to that part of the brass meridian which is numbered from the equinoctial towards the poles, and observe the degree above it ; for all places on the earth having that latitude will have the moon vertical (or nearly so) when she comes to their respective meridians.