| OCR Text |
Show [ 174 J 442 MI" 'IONARY T.\TlON AT THE DALLE~ 01'" THE COLUMBfA. Determination of longitude, Novernber 5 l ~ l :i-altitude. of a. Ly ,'l], OB 'ERVATIONS. l:' IllST SEIITES. SECOND SER[ES. - I --- Double altitudes of Timo of chronometer. Douhlc altitutloo of Time of chronometer. a Lyr:c. t.t Lyr:c. - Deg. min. sec. h. mi11. . ec. De,r. 111/ll . sec. "· min. sec 72 !1 10 !) 10 :35.5 I 71 10 50 !) 15 02.0 72 19 00 11 :l2A 70 50 20 I 46 05,1) 72 01 30 12 27.0 70 22 45 4"1 20.6 7t 43 50 43 2l.O 70 00 40 48 36.5 71 ~7 10 14 10.0 6!) 1l5 10 19 22.7 InJ.ex error -== + l min. 22 sec. RE ULT OF CALCULATION. ---------------------------------------- - Mean time. Au vance. Lon~itude. lt. rnin. .sec. h. ntin. sec. 8 34 59 L 09 53.:3 443 [ 174 J ENCAMPME~T OX THE RrGII'r BA!VK OF THE COL'""MDT.\, I.> MILE~ BELOW THE CA CADE . Determination of longiL~lde, November 11, 184 :3-altit udes of Jupite1 • ODSEH VATIONS. Double altitudes of J u pitcr. Titnf' of chronometer. h. u'in. .~ et:. 10 13 09.6 15 :l9.!i l 01.0 Del!· m1n. sec. 32 12 50 32 0 40 31 30 10 [n ftcx error = + 2 min. 6 sec. HE ULT OF CALCULATION. Mean time. Advance. LongitudP. h. min. sec. 9 04 41 l~nzersilJn of Jupiter's Ji'rst satellite. Observed time. Mean time. Longitude. h. min. sec. 9 45 19 h. nun. sec. 8 34 50.2 Dfg. mw. ser. 122 06 15 Determination of latitude, November ll, 1845-alt itudes of Pola1 is. - OB ER\' ATJON ' . Double altitudes of Polaris. Time of chronometer. Deg. 94 94 94 min. 07 08 09 True altitude. sec. 50 10 10 ft. 10 fudcx error = + 2 min. 6 sec. RE ULT OF CALCULATION. ~can time. ----- Deg. ruin. sec. h. mm. Sf'C. 47 01 00 9 :lO 16 mtn. :18 11 42 sec. 08 13 4:3 Latitude. D t:f!. nun. sel'. 15 3:} 09 |
