solar eclipse, September 7 , 1820. 3 1 3 
The semidiameter of the sun at a solar eclipse is therefore 
to be diminished by 3 ,632 * The semi-diameter of the 
moon appears not to require any correction after Burck- 
hardt’s tables. 
These corrections being applied to the former calculations, 
we obtain the following results. The places of observations 
are ranged in the order in which they follow in longitude 
from east to west. 
Place of observation. 
Phase observed. 
Conjunction cor- 
rected. 
Moskwa - j 
Beginning of the eclipse 
4 20 38,06. 
Berlin - - 
End of the eclipse 
2 43 27,0 
Copenhagen 
i 
Beginning of the eclipse 
End of the eclipse 
2 40 26,09. 
2 40 22,l6. 
Bologna 
\ 
Beginning of the eclipse 
End of the ring 
2 35 25,38. 
2 35 24,58. 
Hamburg - | 
End of the eclipse 
2 29 57,9. 
Gottingen - 
■ Beginning of the ring 
End of the eclipse , 
2 29 43,57. 
2 29 42,73. 
Nienstedten 
Beginning of the eclipse 
2 29 24,77. 
Genoa - - 
End of the eclipse 
2 25 44 , 53 . 
Bremen 
1 
r Beginning of the ring 
End of the ring 
End of the eclipse 
2 25 12,57. 
2 25 10,04. 
2 25 15 « 07 . 
Cuxhaven 
< 
1 Beginning of the eclipse 
Beginning of the ring 
End of the ring 
-End of the eclipse 
2 24 49,86. 
2 24 47,805. 
2 24 50,14. 
2 24 51,39. 
Zurich Obser- 
vatory 
4 Beginning ot the ring 
lEnd of the ring 
2 24 17,6b. 
2 24 16,35. 
* This agrees with Du Sejour’s allowance for irradiation; but the correction 
— 3 ">S which he applied to the 5 ’s semidiameter on account of inflexion, may have 
arisen from the imperfect state of the lunar tables. 
