220 OBSERVATIONS ON TIIE ZODIACAL LIGHT, 



No. 110. 



JANUARY 30th, 1854 (Monday) : MOESIKO. 



Lett. 2C= 10' N.; Lon. 127 42' E. 

 Sun rose 6A. 



f 2A. Om. 

 Stronger and Diffuse Light -j Paled sky l/i. 30m, and 4A. Om. 



U j 



Clouds from the 27th till List evening. Kose at midnight, but tlic sky was cloudy. Was called at l h 15 m , and found 

 the skv clear, except a cloud at the east, which was sinking towards tin- horizon, (I 11 15'" no Light in the wesf.) When 

 it had Mink sntlicienily at 2\ got observation ; also at o' 1 , 4' 1 , and 5 1 '. 8ky very clear, and good Cor observing. Tl it-re 

 was a paled sky beyond the Diffuse, of which I have given outlines at 1" oO"' and 4 h . Am not quite certain that this 

 went Uj> as high as the Milky Way, hut thought it did. There is a broad streak of sky from Eegulus up to the Milky 

 Way, within the dotted lines, which puzzles me. I cannot make out whether its peculiar appearance is owing to the 

 Zodiacal Light, or to a want of stars and a steady paleness or dimness there.* From Prresepe up, however, it seems 

 to amount almost or quite to a positive light, like the Diffuse Zodiacal Light. At 3 h , 4'', and 5' 1 , however, I could 

 not sec it higher than nearly to Regulus. But these palenessvs are all so indefinite, that it is often difficult to get 

 their boundaries ; and at 2'' it was difficult to get the limits of the Diffuse Light, within the paled sky. At 2 h got 

 the Stronger Light, but it was dim. 



It is worth noticing how, as the hours pass, and the ecliptic becomes rapidly more and more inclined to the horizon, 

 the Zodiacal Light, both Diffuse and Stronger, but more especially the bitter, slides over towards the left, or north. 



At 5 1 ', the Milky Way was some distance above the horizon, and tin- Stronger Light was very evidently crossing it, 

 and making itself as inaiked in its boundaries as if there were no Milky Way there. 



At 5" 20"' dawn. 



P. y. See entry of February 15th, instant. 



