170 Description and Use of the

This method of rectifying the globe fornorth latitude holds good in south latitudealso, by elevating the south pole.

PROBLEM XLI.

To find what constellation any re-markable star, seen in the firma-ment, belongs to.

259. Bring the fun’s place in the eclipticfor that day to the strong brass meridian,and set the horary index to that XII whichis most elevated, the celestial globe beingrectified to the latitude, turn the globe tillit points to the present hour; and by thehelp of the mariner’s compass, and attendingto the variation, which at London is be-tween 20 and 2i deg. from the north, west-ward, set the north pole of the globetowards the north pole of the heavens.

The star upon the globe (if you conceiveyourself in the center,) which directs towardsthat point in the heavens, in which thestar you want to know is seen, is the starrequired.

At the fame time, by comparing the starsin the heavens with those upon the globe,

the