IN THE ARCTIC SEAS. 



17 



DcccrabtT 1-2, 1853. Circle East 



Object. 



! Mean of wires. 



6 Arictis 

 5 1- 



r] 'I'lmri 

 27 Tauri 

 A' Tauri 



21. igm 02^.9 

 2 45 14.6 

 2 54 22.7 



2 56 03.7 



3 11 38.6 



0.0 

 +1.5 

 +1.8 

 +4.3 



2>i 18'"55».8 

 2 45 11.9 

 2 54 21.2 



2 56 02.4 



3 11 39.8 



+26"»16>.l 



—09 09.3 

 —10 50.5 

 —26 27.9 



3h03n>17».0 



3 38 48.7 

 3 40 29.1 

 3 56 04.1 



Deduced aid. 



time of moon's 



limb. 



St 29n'33».l 

 3 29 35.6 

 3 29 39.4 

 3 29 38.6 

 3 29 36.2 



J Arietis is nearer to the moon iu reference to declination than any of the other stars, and since 

 tliey differ considerably in their value for the (L 's sidereal time, it seemed to be preferable to combine 

 the results from ij, 27, and A' Tauri into one, and take the mean between it and that obtained by 

 8 Arietis. £„ = + 12" 44- 24«.9. 



December 13, 1853. Circle West. 



Object. 



Polaris R. 



a Arietis R. 



a Bootis s. p. 



y Ceti 



(3 Urs. min. s. p. R. 



a Coron. s. p. 



rj Tauri 

 27 Tauri 

 A' Tauri 

 <L I. 



Mean of wires. 



12ii 15m 44^0 

 1 10 45.0 



20 4(5.9 



47 30.3 



02 56.1 



40 03.7 



50 22.3 



52 02.4 



07 33.7 



30 37.5 



R. 



Cc. 



— 17M 

 _ 8.1 



— 6.4 



— 2.0 

 + 0.5 

 + 6.6 

 + 8.3 

 + 8.5 

 + 11.1 

 + 14.9 



+ 54^6 

 + 1.5 

 — . 1.5 

 + 1.4 



— 5.3 



— 1.5 

 + 1.5 

 + 1.5 

 + 1.5 



+ 1.5 



Mean + iJ+Cc. 



12h 



13 



13 



13 



14 



14 



14 



14 



15 



15 



21^5 



38.4 



39.0 



29.7 



51.3 



38.8 



32.1 



12.4 



46.3 



53.9 



Ih oe-n 19».7 



1 58 56.6 



2 08 58.2 

 35 44.1 



51 07.6 



28 28.1 



38 48.7 



40 29.1 



56 04.1 



T = 14>'00».0 ^0= + 12>' 48"' 20" 



The above data were used in three different forms: 1st, omitting Polaris; 2d, omitting Polaris 

 and (3 Urs. min. ; and last, taking all the stars. The first hypothesis gave apparently the best 

 results, viz : — 



Normal equations : + 8 t + 8.55 a + 4.3 6= — 51.5 a=+26».4 



+ 8.55f + 9.3 a+ 6.5 6 = — 5.5.8 6 = — 2.8 



+ 4.3 £ + 6.5 a + 13.3 6=— 8.5 £= — 33.1 



£= + 12'' 47'" 47' 



Object. 



jj Tauri 

 27 Tauri 

 A' Tauri 



D I. 



— 1^7 

 —1.7 

 —1.7 

 —1.7 



+ 24«.0 

 + 24.0 

 + 24.3 

 + 24.3 



U'' 50"" 54^4 



14 52 34.7 



15 08 08.9 

 15 31 16.5 



+ 40'» 22M 

 + 38 41.8 

 + 23 07.6 



5^ 3S^ 48\7 

 3 40 29.1 

 3 56 04.1 



Observed sid. time 

 of moon's limb. 



4>- 19^ ]0^8 



4 19 10.9 



4 19 11.7 



4 19 11.1 



The mean result from the three stars has been adopted. 



