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Show [ 174 J CAMP 01\l A HTVl~R OF TJH~ • IEHRA NEVADA. Delern~ina [1'on of longitude, Janna r.'l 1 S, L 4 1-alL iltulcs of a. Leon is. OflSEll \- A'I'IOKS. Dou hlo nlliluclc:-; of a l.eo11iH. Ti tn<' of <'h ronomrl<'r. "· mt'n. sec. (j 32 1:1.0 a. m. neg. mm. sec. G2 12 30 61 31 00 34 05.0 GO 28 30 3G 48.5 fnd11x error ~ + 11J !;('C. llJ<; 'U LT OJ!' CA LCULATJON. Mean limr. Advance. Longitude. lt. rni n. sec. h. m1n . .~cc. 6 13 59 a. m. 0 20 23.0 Determination of longilitde, Janttary 18, 1811-altitudes of a Lyrce. on ERVA1'ION, . Double-altitudes of a Lyrm. • Time of chronometer. De g. 80 81 82 Mean time. 1?/171. 39 37 15 lt. min. sec. 6 23 16 a.m. ec. 50 10 lj:) I nllex error + 1 t1 src. h. f) IU~SUL'l' OF CA LCUJ.A'l'JON. Advance. ·--1---------------------- 1t. min. sec. 0 20 25.4 nun. 1-l 44 16 sec. 50.0 a. m. 31.5 11.0 Longitude. - 473 [ 174 ] SECOND ENCAMPMENT ON A RIVlO:R Of THE , TERRA NEVADA. IJetermination of lou rritude, .Janua·ry 19, 1 ·11--a!litudes of a. Cygni. OBSEHVATIONS. Double altitudes of a Cyg-ni. Time of chronometer. ----------~ Deg. rnin. sec. 60 64 50 60 27 25 60 10 20 59 52 35 59 32 30 lt. min. .'lee. 6 :J.r). 59.0 ~7 2:1.5 3 18.0 30 15.0 10 18.0 Index error + IJ 5 sec. RE ULT 0 l•' CA LCU LA 'I' ION. --------------------~--------------------·------------------- Mean time. h. min. sec. 6 18 46 Advance. J,ongitude. lt. mm. sec. 0 19 28.5 Determination of longitude, Januar;IJ 19, 1844-altiludes of a. Orionis. OU ' ERVATIONS. Double allitudcs of a OrioniR. Time of chronometer. Deg. ml1~. 7:3 21. 73 52 74 22 74 48 Mean time. h. min. 6 43 . ~tee. 32 sec. 00 50 50 00 Jndrx error = + 45 sec. UE ULT OF CALCULATION. Advance. h. min . 0 l!) sec. 30.2 lt. min. . ec. 7 Ol 01.6 02 22.0 03 47.0 04 58.0 Longitude. |
