62 A SURVEY OF THE - 
12th May, 1817%.——Observed, immersion of 1 Ist satellite at — 
“Mean time, ..cceseeeree ah aister shite opeletets evericieteatia tlie 
The same observed at the Madras observatoryy. 0.00. és ees 
Differences of meridians in time, ......2esccseccececececece 
Established longitude, of Madyas observatory,...... becede eager 
Longitude of Reital deduced)... 5525 Sie cos sce el Seeiee e's 
By the calculation in the nautical almanack;) it was anticipated 
that this immersion should happen at Greenwich, at ....... 
It took place as above at Madras, at...--~....c. eisiohaysterste et 
Which would make the longitude, Seen ea SUR gen A ONS TE 
Butsit iss kniown iter bes sai Viste. IO CBIR Se Sk. es! 
Difference,: ’ 
Therefore the error of the tables at this time is to be applied, 
to the following immersion : 
10th.May, 1817.—F observedian immersion of the Ist satellite, at 
There is no correspondent observation at Madras, but the 
nautical almanack, gives‘for Greenwich,  E1h. Um. 5s. 
The above error of the tables ...,....-. 47 1 
Pi cca Al, 0 17) 9 
Longitude of Reital deduced, seid ees dale vc eaieais cele eoeoe 
10 
10 
10 
16. 
J, 
14 
Se 
56 6 O 
59 - 9 
Fak eee) 
1a 30 
33.00 
59 9 
26 «9 
14.0 
A? 2 
21 «3 
417, 9 
Mean,.... eoaoe 
He. -[Me.. Se 
5 14 10 #£ 
SIE Se 
§ 4 6 6 
Boru the observations were made under favorable circumstances, the 
air being still and clear. On the 10th, the satellite began to lose lustre 
about 443 and on the 12th, 50 seconds before its disappearance. 
41th May, 1817.—I observed the immersion. of 7 2d satellite, at Reital,...... 
Same was observed at Madras,......ccscecsececs piaire ete. sele nies 
Difference of meridians,........ 
Longitude of Reital deduced.. Ave vuceinemee ee ee: 
@a2a0eero0e ©8204028 0 eooeecre @ereae 
Established longitude of Madras observatory,...2...+cccccccececcvccevececs 
Cr 
ooo eoertescooaeeeareoeoeene be 
He Mo Se 
14,13 35 7 
14 19 4% #¥ 
O 6 5 4 
5 2 14°0 
oO} PO Be 1S 
