280 OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 130. 



MARCH 27th, 1654 : 



Lat. 35' 26' K. : Lon. 13S 42' E. 



Sun rose 5h. 53%m. 

 I 4A. 22m. ) 

 Stronger Light/ 4 30 > Diffuse 4A. 2'2m , 4A. 43m. 



( 4 40 ) 

 Zenith Point at 4A. 45m. ; Lat. 58 20 N. : LOD. 248 0'. 



(26th was Sunday.) WHS called at 4 o'clock, and had an extremely interesting observation. The peculiar 

 interest arose from the fact of the obliquity of the ecliptic with the horizon. (The angle was 31 9'.) Yet the 

 Zodiacal Light, which was perfectly distinct, went stretching along the ecliptic, so that a line along its central part 

 would make an angle of about 77 with a line perpendicular to the horizon. The boundaries are given in the 

 chart. It will be seen that the right-hand or southern boundary of both Diffuse and Stronger Light shifted to the 

 right as morning advanced and the horizon receded from it. Dawn at 4" 39. 



