OCR Text |
Show 174 E'ncampment at nellct·uc, on tlw n'[!ht bank of t/t(' .illissom·i 1'il'C1' at tltr. tradin!!,' post of tltc A~ncrican i'ur Company. ' DETER IIT~ATI0::'-1 OF' LO.:\TGlTlJD E. Octohcr 2, 1 l:2.-Altitnde of the un. Obscrva t ions. J IJ~!\ 1' !it::llJES. s~:co1-m sEmr:-.. D(luhl<· al titude of the T ime of chronometer. ) Donhlc altitntle of thr Time of chronometer ,'un's lo"cr limL. ~ tln '· ltl\rcr limb. · drg. 4H 4 4<1 1 ~) 4~1 min. h. mill. ~( C'. dr~. min. 10 •I CC. 'I lt. min . 07 07.!) 4!) '( c. ~9 4.i 4:2 25 j() 10 0 04.0 49 5:l 00 10 10 (I<) 0(;. (i ;,o (15 00 10 10 09 42. !) 15 05 10 10 lO 10.5 50 ~-1 5,) 10 4 :.20 0!) JO 20 [)0 :~o 10 lndex error, == - 1' 3 II Rc~ ult of calculation. .1\Jcan time. Ad\'ancc. Longitud . h. mill. sec. h. n.in. .•cc. clcg. min. su. 95 47 46 21 41.5 1 4 4l.G DETEfD!l::V.\TlO~ O.F L \ TITUDE. October 2, lS'h~.-Altitudc of the Sun in the meridian. Ol,servations. ·- - Double altitude of the I Time of cl.ronomctcr. lon cr lunb of the un. l rr~. llliTI. $(c. h. m; n. <( C. ~9 5 . 10 J 32 56 9 5 5.) 1 :J3 35 ~) .)9 20 l .14 20 90 00 0.) 1 :Hi 07 '!) 59 55 1 3G 5~) 9 5!) 45 1 3 31 59 40 1 :~9 3~ 59 10 1 40 27 59 lU ] 41 J7 ;, 25 1 4~ :.!G ~7 30 ] 43 21 ;)5 20 1 45 52 --- 10 ll 12 12 l:.J \(c. 49.H 18.G 00.4 30.4 00.0 175 [ 243] E ucampmrnt at 1JcLlc7mP, on thf' ria-Itt bank of tl1c JJ1issouri rivf7· at thr ,. . !. . b ' trar m ~ ;wst rif t w 4 hncncan l''ur Company-Continued. DETERi\ll'NATlON OF LONGl'l'trl>E. Odoher 3, 12.-Aitilu<l of the Sun. l!IR ST 8Ena:s. D01. bk a llltlHk of the Time of chronomctrr. Doublr alt ituor of the T ime of chronometer Sun':-. low<·• limb. Sun':~ lower limb . dtrr ('> :l~J 39 39 :I ~18 11: L1t 49 ~9 07 ;, () 45 h. 3 •f.f C. h. 7/lnt. src. dt·~· ?lli11. srr. h. ?11111. 00 5 3:3 J:LO :Jts :34 55 ;, :H; ~u ;, 34 J2 .3 :n:~ ~tl 20 ;, :n 20 5 :~!l Hi .:! :Js 10 00 5 :18 :10 5 3.> 48 .:J 37 57 ~~5 ;, :J~ 50 5 36 19.0 :n 46 10 5 30 Index error -= - 1' 3 II . . R esult '?f calcu1ution. Mean time. AovatH'C'. Longiluclc. •rr. ft. !>2 ) mi11. 4!) 1orr. 38.5 ...................... DETEUMI'Nl\TION OJ•' L ON(;lTUDE. October 4, 1812.- Altitudc of the Snn. Observa t~·ous. F IRST sEr.tE S. SECOND :'.t•: lln :s. ~rr. 53 .0 ... 25 . o:L 40.0 U.7 Doublr altitude of the Time of chronometer. 1'-l o's lower limb. Doullle altitude of the T in-tc of chronometer Sun'~ lower limb. ·, i. I. ~it' C. lt. min. ,,rr. tl rp,·. miH. 11 JO 10 10 :!0.0 4!) lG 28 30 10 11 14.0 4!'1 ~3 42 50 10 ll 57.:} 49 30 00 ](} 10 12 51.0 49 37 09 05 10 13 19.0 49 45 Index error == - 1' 3:_>, , • R esult of calculation. Mean time. Advance. h. ~u1. :c. B 23 17 .6 h. mi11. srr. 1 49 53.2 $/.'C. h. ;){) lO 45 10 30 10 00 10 05 10 Longitude. dt~. win. srr. 95 47 46 lll/11. we. J :J 42 .0 t ti 04 . t1 11 22.6 14 4G.i 15 11.0 |