OCR Text |
Show [ 243 J 146 147 [ 243 J Encampment on jJfountm·n lake-Continued. E'ncampmcnt at J.Vountain lake-Continned. DET.ER,'\llS.\ TION OF LONG ['l' DE. DET.ERM IN ATl ON OF LONGITUDE. August 11, 1842.-Altituuc of the 'un. Angust 17, 1842.-Altitude of the Snn. Observations. O~serva tions. J.' lfl~T SEfllCS. SECOXO SERIES. -- - Double altitude of the Time of chronometer. Double altitude of the Time of hronomcter. lower limb of the un. lower limb of the ~un . 'I :----- F lllS1 '< I':RI{.;S. SECO~O I)UU~:<;. Double altitude of the Time of chronometer. Double altitude of the Sun's lower limb. Time of chronometer. Sun'li lower limb. cltg. min. src. h. min. sec. cle~. mi11. sec. lt. 711 i11. src. 44 04 00 ~ 36 16.5 45 ~3 00 9 39 53.0 44 15 :lO 9 3G 47.G 45 3:l 10 9 40 20.4 44 30 15 9 37 2 0 45 42 40 9 40 46.0 44 4G :!0 9 :~ 12.3 45 5t J5 9 4L 09.0 45 00 40 9 38 51.0 46 O~l 43 9 41 4:.1.3 ,_ dcg. rn in. S(('. • h. min. src. I cit g. min. src. h. min. ec. 40 02 15 .5 54 4tLO 4l 46 50 5 59 31.4 40 20 00 5 5!) 3r; . :l 4:l 01 20 lj 00 12.0 40 :15 J5 5 :lG 17.0 4~ 18 05 ti 00 57.7 40 4B 35 5 !"i6 5t1.0 4:2 3 20 (j Ol 53.0 41 17 20 5 58 10.5 42 50 15 6 02 2G.3 Result of calculation. Thermometer 64°. :Mean time. Advance. Longitude. Index error - 321 ' . h. min. sec. h. min. src. drcr. min. sec. (') 7 13 19 2 25 49 110 37 25 Result of calculation. M ·an time. Retard. Longi lude. absence from this place, and between the 12th and 16th, the During my chronometer stopped. -- --- . ................................................................. . August 17, 1842.-Allituuc of Lhe Sun in the meridian. Observations. Double altitude of the True central nltitud.e. Latitude. Sun's lower limb. dcg. min. sec. 120 38 15 deg. min. sec. 60 34 22 deg. min. sec. 4:.! 49 24 |