| OCR Text |
Show [ 243] 104 - J:}ncampmeut on the left bank of the I~cmzas river.-Continucd .. DETERMINATION OF LATITUDE. June 16, 1842.-Allitudc of Polaris. Observations. Double altitude of Po- Time of chronometer. laris. d£g. min. Sl'C, "· min. sec. 75 31 20 10 53 40 75 32 50 10 56 l4 75 34 20 10 58 42 75 34 20 11 00 39 75 34 55 11 02 30 7.) 36 50 ll 04 30 75 37 00 11 06 16 75 37 30 11 08 16 75 37 55 ll 09 43 75 39 40 ll 12 59 Result of calculat·ion. True altitude. Mean time. Latitude. dt~. min. 37 46 M!C. 42 h. 9 min. 22 sec. dtg. min.. sec. 30 39 06 40 DETERl\HNA'l'lON OF L.\TITUDE. June l G, 1842.-Allitude of a Aquil re. Observations. rJnST SERIES. SECOND SERIES. ----- - ----- Double altitude of a Aquila:. Time of chronometer. Double altitude of a Time of chronometer. cug. min. sec. lt. !iU 14 00 11 !il 11 20 11 51 52 20 11 Mean time. -- ft. min. sec. 9 50 47 Aqutlro. min. sec. dcg. min. 26 08 5~ 43 28 42 53 29 30 28 54 17 Result of calculation. h. 1 Advance. min. 40 sec. 48 sec. h. min. sec. 40 11 32 46 00 11 34 42 40 11 36 49 Longitude. df.g. min. sec. 9t> 10 06 - 105 Encampment on Little Vennillion creei:;. DETEHMINATION OF LON(;lTUDE. J unc 18, 1 4.2.-Alt.iludc of the Sun. 01.J.'o::e1'Vfl t ions. [ 243 -,.------------------ - F IRST SF.RIE • SF.COND SEHIE<; -- --------~- Double altitude of the Time of chronometer. Double altitude of the Time of clnooon:m·- lowct limb of the Sun. lower I imb of the un. tel. <'<'f.r· 40 40 40 =~9 3n mill. 4l 19 01 44 19 lt . 5 sec. h. min. ser. tleg. min. Sl'C. ,, 11ft?l. 00 7 10 41 .0 3\1 05 00 7 J4 20 7 11 3 .o 3 43 50 7 15 00 7 12 2G.5 38 30 10 T 16 10 7 13 115 3 }3 50 1 l1 40 7 14 17.5 3 00 00 1 11 Index error -:: - 35". Ilesult of calculation. Mean time. Au vance. Longitude. min. uc. h. 1 min. SI'C . dfg. utin. su. 32 18 42 10 96 36 40 DETERMINATION OF LATITUDE. J unc 18, 184.2.-Altit ude of Polari ·. Observa lions. Double altitude of Po- Time of chronometer. lari . ck:g. min. sec. h. 71li?t . sec. 75 49 00 10 44 04 75 56 20 10 48 01:3 75 51 40 10 51 48 75 52 20 10 53 34 75 53 20 10 55 09 1\.esult of calculation. True altitude. Mean time. Latitude. h. min. sec. 9 08 4G dPg. min. Stc. dtg. min. sec. 39 1!> }8 37 54 12 --- I'C. 5~0 52.5 :m.o H.O 5lt'.O I |
