280 
Mr. Bowditch on the solar eclipse, Oct. 27, 1780. 
first volume of the Memoirs of the American Academy of Arts and 
Sciences. The elements of the eclipse for the times of observation 
at Chelsea, calculated by the Delambre and Burg are as follows. 
Apparent times of observation at Chelsea = 
Mean times of observation at Chelsea 
Longitude west from Greenwich 
Mean times of observation reduced to 5 Grech pick 
©’s longitude counted from the apparent oo 
©’s horizontal parallax 
Q’s semidiameter — Irradiation 3" i 
©’s horary motion 
Apparent obliquity of the ain 
D’s longitude counted from the apparent equinox 
D’s latitude north de¢reasin 
> ’s horizontal equatorial parallax —_ « 
)’s tabular sem idiameter — inflexion 2” . 
D’s horary motion in longitude BS YS 
») ’s horary motion in latitude 
)’s horary motion doe we sun in longitude 
©’s right ascensio 
Beginning. | End. 
he / i“ A. 7B 
23 00 58 1 40 37 
22 44 56:8 | 1 24 353 
4 44 03°7 | 4 44 03°7 
3 29 00: 6 O08 39:0 
214° 50 43-5 |214°57 23°2 
8: 8°87 
16 05°15 16 05°17 
2 30 2 30°22 
23 28 14 
213 53 44:0 |215 30 33°7 
54, 15°2 45 25-0 
60 01-9 59 58°6 
16 21:07 16 20°17 
36 25°61 36 21°46 
3 19°03 3 19°54 
he. 33 55°39] h. 33 51°24 
14,10 14-9 | 14 10 40°7 
None of the above places of observation were well situated to find 
with accuracy the error of the moon’s latitude. However by various 
calculations, the result of which will be given hereafter, it was found 
that the correction to be applied’to the moon’s tabular latitude was 
— 104, nearly ; and the error of the tabular longitude — 5/7, sup- 
posing the sun’s longitude to be correct. These corrections being 
made, the observations were re-calculated as follows. 
Observations at Chelsea and Beverly, October 27, 1780. 
The obsérvations at Chelsea were made by the Rev. Mr. Payson. 
In the latitude of 42° 25’ 11” N reduced 42°13'45", and 26” in time 
E from Cambridge, corresponding to 4h. 44’ 03’*7 Ww from Green- 
eet ake rpmmrlie be “44, 
