ctidiog tobaerv 

 atiou^. 



212 ACCOWNT OF THE METEOR SEEN IN CONNECTICUT. 



Cafctt!i<ion«5 aUituefeof the fii'^tioir at Weston was about 16** 5()\ and in 

 from the pre- the 9th and 10th about 3G\ Now if the meteor al^peared- 

 at Weston to describe a great circle, beginning at the nortl* 

 part of the horizon and terminating at a point having the 

 azimuth N 15° W and altitude 75* (which was nearly the 

 case by the observations of Judge Wheeler) the azimuth 

 corresponding to the altitudes 16° 30' and 36% would be re- 

 spectively 1° 11' and 2* 53', as is easily found by spherics* 

 The places of the meteor corresponding nearly to the azi- 

 rout'hs »*^ ii' and '2'^ 53', are given in the three right hand 

 crvlumns of the tal>le opposite to those examples.; these 

 Cjuantities !>♦ ing fouod by proportipnt Thui by the pth and 

 6rh examples, the latitudes corresponding to the azimuths 

 0' and 3* are 42° 3' 6" and 42° 2' 15 ", varying^!" by a 

 change of 3" of azimuth; hence the latitude^^cof responding 

 to the azimuth 1* 11 'is 42* 2' 46", or 42" 2' 45"» as in the 

 table, Th^ .^^^^^"^ Ctuantities. were calculated in the same 

 manner. The azimuth of the meteor at Wenham at the 

 tifne of disappearing was not far from 123° 30' or 124°, as 

 is evident from examples 13, 14, 15| and,l6. Mrs. Gard- . 

 ner supposed the meteor to have been visible considerably 

 south of this point, tvhich could not be correct for the rear, 

 sops stated in the former part of this paper. By taking the . 

 second and third azimuths and altitudes of the meteor, a^ 

 estimated by Mrs. Gardner, and finding b;^, proportion, the- 

 altitude corresponding to the azimuth 1 23' 3,0':i9|r Ij^j4%>a9d. 

 allowing 9' or 10' for refraction, the altitude will be found, 

 to differ but few minutes from 5° 30', which is made use of. 

 in the 14th example. I'he estimated altitude wpuld hare 

 been found nearly equal the same, if the four observations 

 at Wenham had been taken into the calculation, by tb? 

 usual method of interpolation, explained by Sir I. Newton 

 in the Princip. Lib. 3, Lem 5*. The results of the 14th 

 example are assumed in the right hand coluras of Table I, 

 and in Table 11, as the true values at that time ; and it is 

 eiden t, that the latitudes and longitudes thus found must 

 be nearly correct, since the meteor disappeared almost in the 

 ziiihfi^pf Weston, and a considerable errour in any of the - 



^tfrmitt^hg A for the aiiniuth at Wenham, and a for thecorre-pondinj 

 a'tlt»f<^f correcie-l for refraction, expressed in degrees and detimal.s, the 

 f<,rmnlB y,( Newton give.s a = 5-6972''— 0-0009488. (.\-- 106- 90") (A— 

 ,l^"'^0'*5-^()'0^07O12^ (A-.!0G^1*)CA-.U7-60«5.|A— 132 26").^ 

 "' ' . , obhervation«v 



