

On the Meteors of 13/A November , 1833. . 341 



itself, which continued bright two minutes and left a shade still visi- 

 ble, — how long after the end of the six minutes the cloud continued 

 visible is uncertain. He did not notice any motion in the cloud. It 

 was the most remarkable meteor that he saw during the whole night. 

 There is an uncertainty about the altitude and azimuth of the place 

 where this meteor disappeared — they being supplied by mere recol- 

 lection without reference to known objects: the best determination 

 that can be made is alt, 29°, azimuth E. 53° N. 



Lieut. Tho's. J. Cram, of the U. S. Mil. Acad. West Point, 

 saw a meteor which, by the time of its occurrence and by the order 

 and aspects of its transformations, is identified with the one which Capt. 

 Seymour saw. The place of explosion lay, by judgment, E. 15° 

 N., and it was observed, at the time, to be a little lower than the po- 

 lar star. We call the altitude 40°. About ten minutes afterwards, 

 Lieut. Cram saw, to the W. of N. the meteor which was seen, and 

 which has been already described, by the author of this article. He 

 thinks the last to have been decidedly the more brilliant of the two. 



By these data, and with the aid of the best maps that exist*, we give, 

 in fig. J. of the accompanying plate, a graphical delineation of the 

 exact situation of the different observers. The observed azimuths are 

 represented in the figure by the broken lines; while ihe full lines are 

 drawn from the places of observation to the foot of the vertical line 

 in which the meteor is supposed to have exploded, and are supposed to 

 represent the true azimuths, very nearly. The broad line repre- 

 sents the trace of a vertical plane in which the cloud is supposed to 

 have moved ; or in other words, it delineates the line upon the 

 earth's surface directly underneath the path of the cloud. The star, 

 in the vicinity of Kent, is meant to designate the place at which the 

 meteor would have struck the ground, had its course been continued, 

 and from which the meteor would have been seen merely as a bright 

 spot or cloud, without train or motion. To determine that place, the 

 meteor's line of motion was assumed in the known position of the 

 radiant, which, at a quarter before six, mean time, in the region of 

 the meteor's appearance, was 22° from the zenith, and S. 22° E. 

 in azimuth. With this assumed line, the azimuth of the meteor, 

 as seen at Brookfield, does not exactly agree, that being N. 12° 



* Map by Geo. Gillet Esq., 1831.— In our plate the scale is corrected and made 

 to correspond to 69.03 miles to a degree of the meridian. 



