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Show [ 174 ] 506 ENCAMPMC:.IXT OI THE MOHAH VE RIVER, ON 'l'HE • PANI~H TRAIL FROM PUEBLO DE LOS .\ NGELE. TO SANTA FE. Determination of lont;ilude~ .llpril 2l 1 44-altitudes of the sun. OB- ERV TION. fl llST qERI t · S ~: I ' OND SF.n ttf'.. Double altitude~ of the Time of chronontetcr. sun's lower limb. Double altitudes of the Time of chronometer. sun'.-; lowrr limb. Deg. 41 41 41 4 1 40 --- min. ~er. 55 50 37 30 24 20 12 00 59 00 Mean time. h. mw. sec. 4 51 25 -- -------------------- h. 3 ---1 min. sec. Deg. mm. sec. 51 47.5 40 40 45 55 31 .0 40 28 15 56 01.4 40 14· 10 56 3:3.0 39 :36 10 57 01.3 39 2!.l 20 [nJcx error - - 15 SO<'. RESULT OF CALCULAT IO~. R~tard . lr. mm. sec. 0 53 50.3 h. mm. 3U. 3 57 51.3 58 58 59 1 00 Longitude. Deg. min" au. 117 13 00 19.8 53.5 37.2 42.5 Dete'rmination of longitude, .!lpril 21, 184 4-altitudes of .lhcturus. 08 ERVATION ... . FIRST SERlE RtCOND Double altitude. of Time of chronometer. Double altitudes of Arcturus. Deg. 65 66 66 6() 67 --- min. sec. 23 10 00 00 21 25 41 45 01 50 Mean time. h. mtn. sec. 7 58 02 lt. 6 7 Arcturu;.,. '1)U11 . SfC. Drg . nu n. sec. 59 49.0 67 27 00 Ol 15.7 67 49 25 02 08.0 68 09 25 02 57.1 68 28 45 03 55.0 6S 51 55 [ndcx: error= - 15 sec. RESULT O.F CALCULA'rlON. H.etard. h. ·nnn. S('C. 0 63 45.9 <;F.R[E • Time of chronometer. h. min. sec. 7 04 49.0 05 42.4 06 30.0 07 16.7 08 15.0 Longitude. 507 [ 174 ] ENCAMJ'MJ~NT ON THE MOHAHVE fUVEH, ON THE HPA C8H TRAIL FROM PIJEULO DE LO.' ANG'EI.E TO • ANT.'\ FK Determinal ion of latitude, Ap'ril 2 1, 1S41-alt·iturics of Polaris. ODSEH VATIONS. - -------- Double nllituJcs of Poluris. Time of chronometer. Deg. min. .ttec. II . min. sec. 66 59 00 7 ll l3 66 58 50 12 46 66 57 flO 11 43 66 57 20 J6 02 66 56 00 17 16 66 55 10 19 02 66 54 30 20 32 66 54 00 22 Ol 66 52 15 2:) 35 66 52 30 25 06 fntlcx orror = - 10 sec. RESUI.T OF CAI.CULATION. True altitude. Mean time. Latitude. Deg. miu. sec. 33 26 21 lt. mm. sec. ll 59 De!(. min. sec. 31 34 11 Determination nf longitude, .!lpril 21, 1844- dislance front. moon's fi:rst limb to Regulus. On ' ERVATIONS WITH THE CIRC£JE. Time of chronometer. Circle rcacling. ------------------------ h. min. sec. 7 57 15 D('g. mi11. sec. 01 22 t:H> 34 1>0 RESULT OF CALCULATION. ---------- True distance. ---Deg. min. ser. 66 48 51 Mean timr at Greenwich. h. mm.. sec. 16 21 36.6 Longitude. |