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the two lately discovered celestial Bodies. 
Mr. Lexell has shewn to have moved in an elliptical orbit, 
such as would make the time of its periodical return only about 
years : if this should still remain in our system, which is 
however doubtful, we ought to look for it under the form of an 
asteroid. 
If these considerations should be admitted, it might be ob- 
jected, that asteroids were only comets in disguise ; but, if we 
were to allow that comets, asteroids, and even planets, might 
possibly be the same sort of celestial bodies under different cir- 
cumstances, the necessary distinction arising from such diffe- 
rence, would fully authorise us to call them by different names. 
It is to be hoped that time will soon throw a greater light 
upon this subject ; for which reason, it would be premature to 
add any other remarks, though many extensive views relating 
to the solar system might certainly be hinted at. 
Additional Observations relatmg to the Appearances of the 
Asteroids Ceres and Pallas. 
May 4, i2 h 40'. 10-feet reflector; power 516 I compared 
Ceres with two fixed stars, which, in the finder, appeared to be 
of very nearly the same magnitude with the asteroid, and found 
that its coma exceeds their aberration but in a very small 
degree. 
i2 h 30'. 20-feet reflector; power 477. I viewed Ceres, in 
order to compare its appearance with regard to haziness, aber- 
ration, atmosphere, or coma, whatever we may call it, to the 
same phenomena of the fixed stars ; and found that the coma 
of the asteroid did not much exceed that of the stars. 
Hh 2 
