Mr. her.schel’s Account 
498 
Mifcellaneous obfervaiions and remarks. 
March 19. The Comet’s apparent motion is at prefent 2 1 
feconds per hour. It moves according to the order of the figns, 
and its orbit declines but very little from the ecliptic. 
March 25. The apparent motion of the Comet is accele- 
rating, and its apparent diameter feems to be increafing. 
March 28. The diameter is certainly increased, from which 
we may conclude that the Comet approaches to us. 
April 2. This evening at 8 h. 15' the Comet was a little 
above the line drawn from y\ to 9 in fig. 7. This figure is only 
delineated by the eye, fo that no very great exadtnefs in the 
diftances of the ftars is to be expefted ; but 1 fhall take the 
firft opportunity of meafuring their refpedtive fituations by the 
micrometer. 
April 6. With a magnifying power of 278 times the Comet 
appeared perfedlly fharp upon the edges, and extremely well 
defined, without the leaf! appearance of any beard or tail. 
April 16. Fig. 8. reprefents the fituation of the Comet this 
evening about nine o’clock, and is only an eye-draught of the 
telefcopic ftars. 
Remarks on the path of the Comet . 
We may obferve, that the method of tracing out the path 
of a celeftial body by taking its diftance from certain ftars, and 
the angle of pofition with regard to them, cannot be expefled to 
give us a compleatly juft reprefentation of the trad! it defcribes,, 
fince even the moft careful obfervations are liable to little errors, 
both from the remaining imperfe&ions of inftruments, though 
they 
