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Show [ ) 7L1 ] 374 NOO H T.T NF.AR THE SOUTH PASR, ON A S1vfALL AFFT,UENT TO TirE :sANUY l"OHK OF' <~HEE N IUVEH. Deter ntinat ion of laL it ude, .llugn'iL 13, 1 ·13-me·ridirtn altitude of tile sun. Double tLitituJo of the sun'~ !owN limb. J)e~. mm. sec. 121 lt1 15 True central alliluuo. Dcg. muL Sl'r.. lJcg. min. sec. 62 23 25 12 l9 53 ENCAMPMBN'f ON A MALL · ''I'Rl~AM TLUDUTARY TO THE LITTLE SANDY lUVER Delerminrtt ion of longitude, .fl.ugust 1 S, l 43-alliturles of .!lrcturus. OD ' EllVATIONS. ---- Fill T SRTll F.S. SECON J) SI·: JtU:S. DouLI altitudes of Time of chronomct<•r. Double altitutles of Time of chronometer. Arcturus. Deg. min. sec. 69 10 00 lt. 9 68 19 50 68 30 20 68 12 10 61 63 50 Moan time. lt. min. sec. 8 4 39 Arcturus. min. sec. Dcg. uun. 56 15.0 61 35 5~1 10.0 6~1 16 58 01.6 66 57 58 52.3 66 38 69 10.0 66 17 Index error = - 30 sec. llESULT OF CALCULATION. All vance. h. uun. src. 1 ll 27.9 sec. 10 20 15 50 30 lt. min. sec. 10 00 30.0 0 l 23.6 02 13.2 03 06,6 04 03.0 Longitude. Deg. mtn. sec. 109 26 55 375 [ 174 J ENCAMPMENT ON A ' MALL S'l'HEAM TRTBTJ'l'AHY TO THJ~ LT'J"fLE ANDY RIVE H. Determination of lat it utlc, .flu gust 13, l 43-altitude. of Polaris. OBSERVATION . Double altitudes of Polaris. 'J'im of chronometer. Deg. min. sec. h. mtn. sec. 83 46 10 !) 41 35 83 45 40 13 lO 83 41 00 14 3 83 47 10 46 01 83 4 30 47 16 83 49 50 18 22 83 51 50 50 05 83 51 50 50 58 83 62 40 51 43 83 53 30 52 39 Index error = - 30 sec. RE ULT OF CALCULATION • • True altitude. Menu time. Latitude. Deg. min. sec. lt. min. sec. Deg. min. sec. 41 63 23 8 36 12 42 18 OS |
