THE ORBIT OF URANUS. 



131 



Mean Corrections to the Ephemeris of Uranus in the Berliner Jahrblcu and the 



Nautical Almanac. 



Observatory. 

 [R. A. of 

 Urauus] 



Konigsberg, 

 Cambridge, 



[20" 40°] 



Konigsljerg, 

 Cambridge, 



[20" 30"] 



Caniliridge, 

 [20" 37'"] 



Cambridge, 

 [20" 3G'"] 



Cambridge, 

 [20" 3l''°] 



Greenwich, 

 Cambridge, 



[20" 58""] 



Greenwich, 

 Camljridge, 



[20" 52"'] 



Greenwich, 

 Cambridge, 



[20" 50""] 



Greenwich, 

 Kouigsberg, 

 Cambridge, 

 Vienna, 



[21" 17""] 



Caniljridge, 

 [21" 12'"] 



Cambridge, 

 Vienna, 



[21" g™] 



Cambridge, 

 Vienna, 



[21" lO"] 



Meau dates. 



1830 



July 29 

 July 29 



July 29 



Aucr. 12 

 Auff. 25 



Aug. 19 

 Sept. 19 



Oct. 



li 



Nov. U 



1831 



Aug. 3 

 Aug. S 



Aug. G 



Sept. 7 

 Sept. 15 



Sept. 11 



Nov. 4 

 Oct. 26 



Oct. 81 



1832 



Aug. 9 

 Aug. 10 

 Aug. 15 

 Aus. 3 



Aug. 12 

 Sept. 12 



Oct. n 



Oct. 12 



Oct. 7 



Nov. k; 

 Nov. 9 



Nov. 15 



Observed corrections in R.A. Observed corrections in Dec. Corr. to Geocentric 



Mean. 



s 

 -1.5G 

 -1.61 



-l.r,5 



-1.3G 



— 1.4G 

 — 1.34 



— 1.3G 



-I. i:: 

 -1.70 



-1.G7 

 -l.CO 



-IAS 

 -1.54 



-2.02 

 -2.24 

 -1.99 

 -2.33 



-1.97 



-1.91 

 -1.90 



-1.85 

 -1.89 



No. of 

 obs. 



11 

 9 



7 

 IG 



10 



13 

 15 



Corrected 

 meau. 



S 



-1.50, 

 -1.C7,, 



-l.GO 



-1.65., 

 -1.52.; 



-1.58 

 -1.623 



-1.50, 



— 1. 



-1.72, 

 -1.86, 



-1.79 



-1.G73 

 -1.76, 



—1.72 

 -1.48. 



— i.to. 



-1.63 



-2.02, 

 -2.24 

 -2.18* 

 -2.33, 



-2.19 



-2.1G, 



-2.09, 

 -1.90, 



—2.01 



— 2.04, 

 — 1.89i 



—2.02 



Mean. 



-f 4.6 



-1-3.6 



-1-2.5 



+ 3 



+: 



+ 1.7 

 4-0.2 



+ 1.9 



+ 1.1 



No. of 

 obs. 



Corrected 

 uieau. 



11 



15 



+4.6 



+3.6 



+ 4.3 



-5.3 



+ 4.9 



+ 3.4., 



+ 2.8 



+ 2.0 



Longitude. 



Latitude. 



[-19.2] [+ 9.5] 

 —20.8 +10.3 



[_18..5] [+ 9..5] 

 —20.8 + 9.1 



[-17.2] 

 —21.2 



[-16.7] 

 —19.5 



[-16.6] 

 —19.8 



[_23.8] [+10.0] 

 -23.4 +11.1 



[—22.0] [ + 10.0] 

 '^ ^ +11.8 



[—20.7] [+ 9.S] 

 —21.0 +10.8 



[_28.4] [+10.3] 



—29.2 



[_26.9] 



—28.8 



+ 11.9 



[-25.8] [+10.2] 

 — 2G.6 +11.1 



[—25.2] [+10.1] 

 —27.4 +10.5 



