ON TWO CELESTIAL BODIES. ] 25 



I0\ 16'. There is a very fmall ftar, like a fatellite, about 

 75° fouth-fbllowing Ceres. See Fig. 3. It is in a line from 

 C to&oflaft night. 



1 I h . 20'. Ceres has advanced in its orbit ; but has left the 

 fuppofed fatellite behind. 



March 30. 9 h . 35'. A fuppofed lft fatellite is direaiy fol- 

 lowing Ceres : it is extremely faint. A 2d fuppofed fatellite 

 is north-following. See Fig. 4. The fuppofed fatellites are 

 fo fmall, that, with a 20-feet telefcope, they require a power 

 of 300 to be feen ; and the planet (hould be hidden behind a 

 thick wire, placed a little out of the middle of the field of 

 view, which muft be left open to look for the fuppofed fa- 

 tellites. 



12 h 17'. Ceres has changed its place, and left both the fup- 

 pofed fatellites behind. 



March 31. 9 h 20'. There is a very fmall ftar, on the north- 

 preceding lide of Ceres, which may be a fatellite. 



1 l h 50'. Ceres has moved forwards in its path ; but the 

 fuppofed fatellite remains in its former fituation. The neareft 

 ftar is l 20' r of time from Ceres ; fo that, within a circle of 40'' 

 of time, there certainly is no fatellite that can be feen with 

 the fpace-penetrating power of this inftrument. 



It is evident, that when the motion of a celeftial body is fo 

 confiderable, we need never be long in doubt whether a fmall 

 ftar be a fatellite belonging to it, fince a few hours muft de- 

 cide it. 



May 1 . 1 2 h 5 1'. I viewed Pallas with the 20-feet refle&or, 

 power 300 ; there was no ftar within ■>', that could be taken 

 for a fatellite. 



Of the Colour of the neiv Stars. 



Feb. 13. The colour of Ceres is ruddy, butnot very deep. Ceres is of a 

 April 21. Ceres is much more ruddy than Pallas. £*|j ^ ur * 



April 22. Pallas is of a dufky whitifh colour. white. 



Of the Appearances of the new Stars, with regard to a Di/k. 



Feb. 7. Ceres, with a magnifying power of 5\6\> thews The di/k of* 

 an ill defined planetary difk, hardly to be diftinguifhed from £^V $ W "*' 

 the furrounding hazinefs. 



Feb. 13. Ceres has a vifible difk. 



April 



