151 



X. — Remarks on the Occultation of Jupiter and his 

 Satellites by the Moon, January 2nd, 1857. 



By the Rev. Henry Halvord Jones, F.R.A.S., &c. 



[Read 2Uh March, 1857] 



The following observations were made at the Rusholme-road 

 Cemetery, Manchester. 



GRBETVnCH MEAN TIME. 



h. m. s. 



The fourth Satellite disappeared 4 47 36 



The third ditto ditto 4 54 38 



First contact of Jupiter with the Moon 5 58 



Total immersion of Jupiter 5 2 41 



The first Satellite disappeared 5 3 21 



The second ditto ditto 5 4 27 



Last contact of Jupiter with the Moon 5 55 50 



The time elapsed between the first contact of Jupiter and 

 his total disappearance was 1 minute and 43 seconds. And 

 the time between the beginning and end of the occultation of 

 the planet, 54 minutes and 52 seconds. 



In the earlier part of the evening and during the time in 

 which the several occultations took place, the weather was 

 very fine, and all the objects were beautifully distinct. Not 

 only was the disc of the planet well defined, but his belts and 

 satellites were seen without the slightest difficulty. Not long 

 after the last satellite had disappeared, but more particularly 

 about the time of the planet's reappearance, flying clouds 

 began to interpose, and thus rendered the emersion of the 

 satellites invisible, and the last observed contact of Jupiter 

 with the Moon indistinct and doubtful in time to the extent 



