72 



Mr Innes on the Solar Eclipse 



happen on the 29th of November 1826. The elements have 

 been found from the solar tables of M. Delambre, and the lu- 

 nar tables of M. Burckhardt. 



Although the moon's apparent semi-diameter exceeds that 

 of the sun, yet, owing to the moon's great south latitude, the 

 eclipse will not be total any place of the globe, as the central 

 path of the penumbra will pass beyond the north pole. For 

 the same reason, at those places where the eclipse will be visi- 

 ble, the parallaxes in latitude will not be very different ; and, 

 therefore, also, the digits eclipsed will be nearly the same at 

 all places in Great Britain ; but the times will be affected by 

 the parallaxes in longitude, which will vary with the situation 

 of the place. 



The elements are as follows 



D. H. 



29 11 



+ 



29 11 

 246= 

 244 

 21 



Ecliptic conjunction, mean time at Edin. Nov 



Equation of mean to apparent time, 



Hence the apparent time is 



Longitude of the sun and moon from true equinox, 



Sun's right ascension, ... 



declination south, - 



■■ horary motion in longitude, 

 ■ right ascension, 



— — . declination, 



semi-diameter, - - - - 



horizontal parallax, ... 



latitude, - ",."(" 



Obliquity of the ecliptic, 23 



Horary decrease of the equation of time, 



Moon's latitude north increasing, - - 1 



equatorial horizontal parallax, - 1 



horizontal semi-diameter, 



■ horary motion in longitude at conjunction, 



. ■ for the hour preceding, 



i . ■ ■ — for the hour following, 



. horary motion in latitude at conjunction, + 



_^_ — — — — for the hour preceding, + 



- for the hour following, + 



Angle of relative orbit of the moon with the ecliptic, 

 Horary motion of the moon from the sun in the relative 

 orbit, - 



12 47, 11 a.m. 



11 31, 26 



24 18, 37 a.m. 

 46 21, 83 

 55 41, 04 

 27 34, 47 

 2 32, 09 



2 41, 06 

 + 25, 65 

 16 15, 15 



8, 93 



0, 00 



27 36, 86 



0,895 



12 27, 81 

 1 23, 66 



16 43, 80 

 38 5, 80 

 38 5,865 

 38 5,735 



3 25,833 

 3 26,054 

 3 25,613 



30 36, 4 



35 43, 62 



