QiS '- : ■,..,■ ' A NEW METHOD OF 



Brought over, Apparent right ascension, .. •• •. •• •• 23: 60: 06. 13 



Interval, 23: 54. 15 



ARn. Moon's limb, . . 23 : , 14 : 00. 28 

 Ditto Moon's semi. . . + 59. 20 



Ditto Moon's centre,.. 23: 11: 59. 48 



= 348°: 44": 62" 



Moon's horary motion is, .. 27'. 5 



Moon's right ascension at Greenwich, at 1 p. m. is, 348° : 38': 06" 

 Observed at 7 : 35 : 20. 28 348 : 44. 52 



In advance of 1 p. M. .... .... .... ... 6:46 



Hence, .... .... .... ... =: 6. 77 



As 27. 5: 60m. :: 6. 77: 14m.: 45s. 

 ARn. Moon's limb. ... 23h.: 14m.: 00s. 28 

 Ditto Sun, .. ..15: 38: 40. 00 



H. M. S. 

 Apparent time at Prome, 7 : 35 : 20. 28 

 Ditto at Greenwich, ..1: 14: 45. 00 



Longitude, • • . . 6 : 20 : 35 



"When a great number of stars has been observed, whose declinations 

 differ from one another, it will be proper to divide them into sets, each set to 

 comprehend those stars, whose declinations approach to one another closely, 

 and the longitude should be deduced from each series separately, as in the 

 subjoined example. 



The subjoined transits of twenty-two stars were observed on the 18th 

 February 1826. The moon's first limb culminated per chronometer at 3h. : 

 20ra. : 05s. 7- declination 20° : 30': Hor. Semi =: 15' : 27", and semi-diaraeter 

 in ARn.rzlm.: 5s. 93. - 



' The stars are divided into three classes or series, according to their decli- 

 nations, and the jneaji of the approximate right ascensions and declinations 

 of each series, is used as the argument to find the correction for the precession, 

 aberration and nutation of that point of the Iieavens Vv^hich corresponds to the 

 Alln. and declination. The tables used are those of Mr, Fallows. If other 



