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Show G2l .eNCAMPMENT oN ·nn~ . WF. P.'I' W A Tr~ ll nrVEl{, O~'fC MfLE nr·: r.ow HOCK fN 01·; PEN J)J·; 'C I·J. De!t•rmina!ion, nf/al i l ud<', .tlu!.[ IHt 1, l.S 19 - flllil urlc of Polaris. OBSE HVA'fT O:--lS. Douhl<· all il Utle of Poluris. 'l'irne of l'h rnnnrnctt·r. nrt;. 11/l'fl, b'f'C h. 84 04 nun. .w•r, 20 ll 2!) :1:} St () ;) 50 1 I 31 12 91 05 00 1 I :J•! ]!) 84 07 so 11 :n 12 84 09 oo I I :J!) 20 84 10 00 ) l :16 !37 81 11 40 Jl 31i 18 84 13 0() ll :)!) 38 tH I:J 10 1l 40 JR Sf 11 00 ll ·12 14 'J'lH!flllOIU t ' 1' 41°. -- RESUI.'I' OF CALCULATION. True altituclt·. Mean time. LntituJc. Dr~. mtn. sec. 42 O:J 51. '9'· nluRn . .'I4CC0. Dr11~:.! . m2i9n . s6e6c. r nclr '{ error + 12 RC ' , Determination of long it url'c, .(} u.o-usl 1, 18,12-oll itude of .llrcturus. Douhlc alt itu<.lo of Arctunts. D~. fi6 66 65 65 64 mm. .~f'r. 4 1 00 16 20 50 30 24 10 49 20 Menn time. h. min. src. 9 11 00 OB ' ERVA'l'IONS. >;}; ( 'ON II S ~: It J ~: , Time of chrouonu•tcr. I Doubl altitude of Arc- Time of chronometer. turUI~ . lt. min. .'1f'C. Dr g. rmr. . . •cc. 11 54 rJ~;.o 61- 00 00 ll 56 0:).0 G'J 22 50 11 57 10.0 62 ,j() :l() l l 58 lH.5 62 14 10 ll 59 55.5 61 •I r,o lt. min. sec . !2 02 10.0 12 0:3 52.0 12 05 29 6 12 or; 67.0 u 0 06.0 -- RESULT OF CALCULATION. Ad van<'<'. LongituJc. It. min. ~-t•r. 2 17 18 Drg. mm. sec. 107 55 00 [ 171] Dc/ermt'nalion ~~J'latilu,h·, .!lugust 5, LS 12 - u/titutle ~~ll'olaris. De~. 88 f18 88 88 88 True nltituJe. min. '0 03 02 02 OJ /Je!;. min. ser. 4l 00 Jj 0 BSJ-: ltV ATTONi. .. Timo of chronomrt<·r • .•ec. :]() 2() (10 40 JO Thermometer 57°. lJl<lcx error ,~ + 2:') ~;cc. HE:)ULT OF C'ALCUT.ATION. Mean time. !t. min. sl'r. 3 02 49 ,,,. 5 t; fJ 5 6 min. /U' C, 18 5!) 22 )!) :13 39 26 01 27 32 J.ntitudc. Drg. mtn. Bee. 42 32 31 Determination qf longilu.de, .flugust 5, 1842-a/tilurle ofa. Lyrre. - h. ~ OBSERVATIONS. --. - Double altitude of a Lynn. 'I'irnc of chronometer. De~. 67 66 Gti Mean time. mm. 4~ min. 38 69 ~5 ur. 30 40 30 ''· 6 5 5 Sky vuy miHty.-ObRervation inJiff..:rl'ut. HESUL'r OF CALClJ~ATION. '2'· Advance. mtn. sec. 20 I 53 n,in. (14 OG 07 sec. 26.0 21.5 32.0 Longitude. ~--------------- ~--- |