of the Georgian planet. 
259 
Addition. 
The 15th of February, 1798, an interior satellite was seen 
about its greatest northern elongation ; as it was between the 
planet and the second satellite (miscalled the fifth), its position 
must have been 84° 49' nf. On account of its faintness it was 
not seen immediately, but as soon as it was perceived, it was 
surmised to be the second satellite ; but the identified distance 
of the second, which was 455, is much too far for the observed 
distance of the faint satellite, and proves that in reality the 
supposed fifth was the second satellite. This is moreover con- 
firmed by its brightness, and by the angle of position which 
was taken. The first satellite was invisible, its distance being 
only 124; it even remained invisible the next day, when its 
distance was 289 ; the observed faint one, therefore, must 
have been an interior satellite in a distant part of its northern 
elongation. The 16th of February, the place where the satel- 
lite had been the day before was scrupulously examined in 
looking for the supposed fifth, and as there was no star re- 
maining in that place, the removal of the interior satellite 
from its former situation was thereby also ascertained. It has 
already been noticed that in the contracted position of the 
orbits an interior satellite observed the 15th could not pos- 
sibly be seen the 16th, which accounts for its not being 
noticed the last day of observation. This is one of the cases 
where the singular situation of a star alone, is almost suffi- 
cient to prove it to be a satellite. 
The 17th of April, 1801, the interior satellite, which had 
been seen in its greatest northern elongation, was now seen 
about its greatest southern elongation. Its situation, by 
