 | George Adams - 1766 - 306 pàgines
...points to the prefent hour ; and by the help of the mariners compafs and attending to the variation, fet the :north pole of the globe towards the north...the ftar required. At the fame time, by comparing the ftars in the heavens with thofe upon the globe, the other ftars and their conftellations may be... | |
 | Alexander Adam - 1794 - 748 pàgines
...pole of the heavens. The ftar upon the globe (if you conceive yourfelf in the centre,) which direfts towards that point in the heavens in which the ftar you want to know is fecn, is the ftar required. At the fame time, by comparing the ftars in the heavens with thofe upon... | |
 | Alexander Adam - 1802 - 914 pàgines
...c'.vbe (if you conceive yourfelf in the centre), wliich directs towards that point in the lieavens in which the ftar you want to know is feen, is the ftar required. At the fame time, by comparing the ftars in the heavens with thofe upon the globe, the other ftnrs and their conftellations may be... | |
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... fet the :north pole of the globe towards the north pole of the heavens. The ftar upon the globe (if you conceive yourfelf in the center) which directs towards that point in the heavens, in which the ftar you want to know is feen, is the ftar required.... 