Dr. Herschei/s Observations , &c. 
I also found, that even the fixed stars differ considerably in 
this respect among themselves. The smaller they are, the larger 
in proportion will the attendant haziness shew itself. A star- 
that is scarcely perceptible, becomes a small nebulosity. 
10-feet reflector. ig h io'. I compared the appearance of 
Pallas with two equal fixed stars ; and found that the coma of 
this asteroid but very little exceeds the aberration of the stars. 
2 4 h 5 'f 20-feet reflector. I viewed Pallas ; and, with a magni- 
fying power of 477, its disk was visible. The coma of this 
asteroid is a little stronger than that which fixed stars of the 
same size generally have. 
