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Show [ 174 ] 536 I·; C \MPMI·~NT AT BHOW !.~'~.:; UOLJ; ON GHJ·,I~N UIVJ·a . Delcrrnination ollongitude, June s, lS-11-alliturlc's of !he sun. OllSEHV 1\.TJONS. "i I;(' () 'II II "' E Ill I.~ • --------- --- Double altitudeH nl thl' 'f'iml' of chrnnuml'tPr. !-:lltl1H JOWI'I' Jirnh. Doubl<· altitud t•s ofthc I :-:un';; luw!'r limb. I IJeK. m£n. 8fl'. h. 59 !)0 25 !'i 60 OG 00 GO 19 45 GO 3:3 20 60 18 40 \~lean tim<'. lt. min. sec. 7 24. 5 win. 8t't' . lh•g . 111 irl. :39 :31.0 61 ()I '10 1 G.5 Ql IN 10 !12 :3 (j I 3:3 1L 27 0 Gl lj(i 42 07.:3 ()1 5G Thermometer 8 9°. Index error ,..- + 8 sec. RE ~ UL'I' O.F CALCULATION. ft. l Rdard. rrnn. sec. -12 :32.3 --------~~------ 8CC . :Jf) !)!) 00 10 55 ENCAMPMENT ON ELK IlEA U JUVER. I 'J'w1c of dno11omotcr. h. 11/J.n, ~t'C. !) 42 43 4 13 28.3 41 05.6 44 11.2 45 09.4 Longitude. Determination of longitude, June 10, l84 tJ-altil?.tdes of Q. Lyr;e. - OH E RV A'I'IONS. Double altitude:-: of Time of ('hronom<'trr. Uouble altitudeti of 11 Lyra•. rt Lyra' . De g. 75 75 7G 76 76 -- !t. min. Ste. 26 15 44 20 Q(j 10 21 50 :rt 4() Mean tim<'. min. 37 sec. 18 ft. (i urin. Sl'f, Ot•,.r.,r , Ill ill. 16 4.1 () "/(i 5G 4 "i 3:3.:3 77 11 'lA :35 0 n ~3!) '19 20.2 77 52 50 05.0 "/8 ()!) T 11l~ex rrror + 4 sec. HESULT 01•' CALCULA'rTON. ft. 1 Retard. min. 4.G ."'f'C 19 () (J:J Correct this longitude on map. 8('C. 50 00 00 15 50 'l'imo of chronometer. h. 71ltl1 . sec. (j 50 59.0 51 ~8 0 f)2 48.4 5!3 36 4 5>1 26.0 LongituJc. r.:: ., ,., Ou• [ 174 ] ENCAMPMENT ON ELK lll'~AD H!VJ·~H JJeterminutioH of latitude, .June 10, l8 ·t 1-afLiludt'S oj Polaris. ommnv.ATJoN~. Doublt• nltitucks of J ,c lari::~. TimP- of rhronorndc•r. f)rg. m/n. sec. lt. IIHI1 . Sff. 79 02 30 6 n7 fJ7 79 02 45 59 24 79 o:J 40 7 00 29 79 03 00 01 4l 79 04 10 o:J 46 79 04 20 01 6 79 01 :10 Ofi 31 79 04 50 08 05 79 05 35 09 18 79 05 30 10 35 Thermometer 57°. Index error ...., + 4 sec. RESULT 01•' CALCULATION. True altitude. Mean time. Latitude. Deg. min. sec. 3~ :w 53 lt. min. SfC. JJcr.r. min. .~ec. 50 59 40 58 37 CC}'Corrcct this latitude on map. SECOND ENCAMPMENT ON ELK HEAD RIVER. Determination nf Lalit ude, June 11, 1844- altitudes of Polaris. OD ERYA'l'IONS. Double altitudes of P olari". Tim of chronometer. - Deg. mtn. sec. lt. min.. sec. 79 14 -10 7 19 47 ?9 15 40 22 14 79 lG 25 24 01 79 16 10 26 19 79 17 30 28 oz 79 l 00 29 07 Index <'rror == + G sec. HESULT OF CAT.CULATJO!'I'. True nltituJ . --Deg. min. 39 37 sec. 07 h. 9 Moun time. nu.n . 14 sec. 42 Dcg. 41 Latitude. min. 01 sec. 11 |
