The following Problems are peculiar to the _Celestial Globe_. PROB. XXXIV. _To find the Right Ascension and Declination of the Sun, or any Fixed Star._ Bring the Sun’s place in the ecliptic to the meridian; then that degree of the equator, which is cut by the meridian, will be the _Sun’s Right Ascension_; and that degree of the meridian, which is exactly over the Sun’s place, is the _Sun’s Declination_. After the same manner, bring the place of any Fixed Star to the meridian, and you will find its Right Ascension in the equinoctial, and Declination of the meridian. Thus, the right ascension and declination is found, after the same manner as the longitude and latitude of a place upon the _Terrestrial Globe_. _Note_, The right ascension and declination of the Sun vary every day; but the right ascension, _&c._ of the Fixed Stars is the same throughout the year[6]. The Sun’s Right Ascension. Declin. _Deg._ _Deg._ { _January_ 31 314 17⅓ S. { _April_ 5 14¼ 6 N. Thus on { _July_ 21 120¼ 20½ N. { _November_ 26 242¼ 21 S. R. Asc. Dcl. _Deg._ _Deg._ _Aldebaran_ 65 16 N. _Spica Virginis_ 197¾ 9¾ S. _Capella_ 74 45⅔ N. _Syrius, or the Dog-Star_ 98¼ 16⅓ S. _Note_, The declination of the Sun may be found after the same manner by the _Terrestrial Globe_, and also his right ascension, when the equinoctial is numbered into 360 degrees, commencing at the equinoctial point ♈: But as the equinoctial is not always numbered so, and this being properly a Problem in _Astronomy_, we choose rather to place it here. By the converse of this problem, having the right ascension and declination of any point given, that point itself may be easily found upon the globe. PROB. XXXV. _To find the Longitude and Latitude of a given Star._ Having brought the solstitial colure to the meridian, fix the quadrant of altitude over the proper Pole of the ecliptic, whether it be North or South; then turn the quadrant over the given Star, and the arch contained betwixt the Star and the ecliptic, will be the latitude, and the degree cut on the ecliptic will be the Star’s longitude. Thus the latitude of _Arcturus_ will be found to be 31 degrees North, and the longitude 200 degrees from ♈, or 20 degrees from ♎: The latitude of _Fomalhaut_ in the Southern Fish, 21 degrees South, and longitude 299½ degrees, or ♑ 29½ degrees. By the converse of this method, having the latitude and longitude of a Star given, it will be easy to find the Star upon the globe.