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Show [ 174 J 466 NEW YEAR', EVE CAMP. . Dete1·mination of longiturlr, December 31, 1843-altiltules of a. Cygni. Ofl "EHVATlONS. Double nltitndcA of Time of chronomctrr. Double allitutlcH of 'rime of dnonomclcr. a Cygni. tt Uygni. -- Dr g. mm. Sf'C. 76 32 110 h. mm. .~('C. Dr~. min. sec. 7 19 !3 I.() 71 Jtl 50 h. rnm. sec. 7 26 37.2 75 14 10 .. 22 01.0 73 51 .so 27 38.0 7'J 19 00 23 16.5 73 3G 10 2 33.0 74 59 10 21 17.0 73 18 25 29 30.5 74 37 35 25 24.5 7:) 01 35 30 21.6 Tmlex error = + 1 lllill. 10 sec. RESULT 0 I<' CAJ.CUJ.ATION. Mean time. Advnnee. Longitude. J,. min. src . lt. mm. src. 6 56 !37 0 29 OG . :J ('AMP I·~ It Tfil~ ~1UD LAKB. Detennination of longitr.ulc, .Jan uar!J 3, 1~4'1-a/titudes of a. Cygni. ...... _- Ol!S1~HV A'l'10NS. Double altitudes of a Uy~ui. Time of chronomctrr. h. mm. sec. 7 OH 58.0 Deg. nun. -sec. 74 44 4.() 711 22 00 10 07.0 7:3 51 50 11 29.0 73 33 40 J 2 :31.0 73 11 ] 5 t:l 13.0 Tndc. error + 1 min. 15 ~;oc . Mrun time. !1. m1n. sec. f) 4:3 4 7 HESULT 01<' CALCULATION. Aclvnncr . sec. 34. J,ongituue. ---·----·--- _________ _;_ ____ 467 [ 174 ] CAMP EAR THE MUD LAKE . Determination of l aliLu.df, ./anuar,y 3, 184·1-al!itudes of Polaris. OU ' J~RVA Tl ON.' . -·----- ---:--·------------ -·--------- Double altitude" of Polaril'. Tim" of C'hronomct r. Df'g. min. . ~cc. h . 111171 . sec. 84 35 30 i' 18 18 84 !j {) !5 20 06 84 36 50 22 04. 84 !.H) HJ 24 40 84 ~ !) 1 25 2'J ludc'< t•rror + 1 min. 46 '>N'. H.F<..;~ ULT OJc' CJ\I,CULA'l'ION· True altitude. Mran time. Loti tude. Deg. m1n. sec. h. mm. !U'C. /)('g. mtn. sec. 42 17 30 (j 55 :31 10 1R 15 CAMP NEAR THg GREAT BOILJ G :-iPHINi;. Determination of lon!Jiludr, January G 1 44- a/l il7ules of o. Cygni. OHSF.RVATION.'. ----- Double ultitucl<'R of rr Cy~ni. Timl' of chronometer. - 71. 66 Dr g. mm. 70 21 70 0:3 69 4.1 69 2~ 69 u Moan time. min. 44 sec. 2 M'r. h. min. .sec. 40 7 10 04.0 50 10 56.0 :w 11 45.6 20 12 17.0 40 };3 17.5 Index error = + 1 min. 48 sec. UE5ULT OF CA.I.CULATIO~. lt. 0 Advance. rm·n. '1.7 '('C. 23 7 J.ongitudr. --- ·------ ---- 4• |