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Show , [ l i .t J 518 THIRD ENC t\MPMENT ON THE RIO VCRC:EN Determination of latitude, A1ay 9, 1 44-altihules of Polaris OB EUVATIONS. Double altitudes of Polnris. Tune of chronometer. De g. min. sec. ft. mtn. sec. 70 fi5 lO 7 2!) 42 70 55 15 2() 5G 70 55 50 2A I~ 70 55 00 29 12 70 51 30 :30 54. '70 64 30 :31 5S 70 5~ !10 !l:l l'7 70 M lO 34 37 70 53 10 36 ll 70 53 20 37 20 (ndox error ..., - 2 sec. RESULT OF CALCULATION. True altitude. Mean timt> Latitude. - -------------- DcK· mw. sec :w 53 4.0 Deg. miu. sec. 3[1 25 53 rnm. sec. 4.!) 5!) ENCAMPMENT ON SAN1'A ULA HA ~"ORK OF THE IUO VlllUEN Determination of latitvde, May lO. 1844-altitudes of Polaris. OTISERVATIONS. Double altitwlcs ~>f PolanH rime f r hronomrtl'l' DCf~· rrnn. sec. ft . nu'11 . SI'C 71 29 4.5 7 !6 !1() 'll 2!.1 20 17 !3R 71 29 40 U) l() 'i L 29 :30 20 !H) 71 2S 50 ~~~a 06 71 28 :30 24 39 71 27 45 25 -19 71 27 30 27 08 71 27 30 :2g 25 71 26 50 30 44 RESULT OF CALCULA'flON. True altttudc. Mean tune Latitude. 519 [ 174 J ENCAMPMEN'r AT • 'ANTA CLAHA FORK OF THE RIO VrRUEN. Determination of lun,rrit1tde, May L L, 1844-allitudes of the sun. 0 BSE H V A'I' fO l\ Double altitudes of the sun'H lowrr limb . Time of chronometer . ~--- --- D~·~· Ill/ n. . ser. h. mtn. sec. 57 10 15 :l 08 24.5 n6 27 <10 10 12.2 l)(i 06 !)!) 11 02.0 R~;SULT OF CALCU LATION. Mean time. Retard. ---- -------- ·ENCAMPMENT T VEGA DE ::;A 'TA ULARA. Determination (~/'longitude , May 12, l 44-altitudes of the s?tn .. OBSERVATION~. ~' lllHT HEll! EH. , J;COND SERU, S. Double altitudes of the Time of chronometer. Doublr nltituut'14 of the Time of chronometer. ~:~un's lower limb. sun's lower limb. Deg. 55 55 54 54 54 rnin. 8CC. 20 15 05 10 51 25 38 20 24 50 Mean timr. h. rnin . sec. 4 32 22 h. 3 nun. .'!('(' . Dcg. min. ser . 13 11.0 51 09 00 13 50.2 53 58 30 11 24.8 53 19 10 1'1 n7.4 53 39 15 15 29.4 53 27 40 Indc\. error - + 15 sec. HE UI.T OF CALCULATJOl'<. Retard. !t. mm. sec. 1 lfi :38.0 h. m£o. sec. 3 16 11.3 IG 39. :J 17 02.2 17 27.5 17 67.0 Longitude. |