308 Dr. Herschel’s observations of the satellites 
satellite ( miscalled the second) is directly north of the planet ; 
the second (miscalled the first) is a few degrees np. 
£ The first was 8iy° nf ; the second n°np. 
1787, February 10, 8 h 57'. The first satellite is about 53 0 
np. 8 h 33'. The second satellite is about 2o°sp; a supposed 
third is about 45 0 sf. In a little more than four hours, I saw 
the satellites go on with the planet, and also in their orbits. 
J The first satellite was 67-!° np; the second was 20° sp. 
The supposed third was lost, no subsequent observation hav- 
ing been made of it. Before I began observing, I had deli- 
neated their places on paper, on a supposition that one of 
them moved at the rate of 8^, the other at that of 13-j days 
the revolution. 
1787, February 11, 13 11 28'. Between flying clouds I saw 
the second satellite. 
J The satellite was 0 sp, which agrees with the con- 
figuration. 
1787, February 13, io h o'. The first satellite, with 300, is 
about 75 or 8o° sp; its distance from the planet is about ~ of 
a minute. The second is about 85° sf ; its distance is one full 
minute; the estimations are by the field of view of the sweep- 
ing piece. Third, fourth, and fifth supposed satellites were 
marked. 
J The first satellite was 68|° sp ; its distance was 553, the 
radius of its orbit being 600. The second was 8o|- 0 sf ; its 
distance was 539, the radius of its orbit being also 600. The 
third, fourth, and fifth supposed satellites proved to be stars. 
No great accuracy can be expected from the estimated dis- 
tances given in the observation, the field of the eye piece, 
which took in 1 5 minutes, being much too large for the purpose. 
