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Show [ 17 t J 438 • 'EC'OND ENCAMPMENT ON COLIJMil!A I IVEl Delenninat ion of lou gil ude, Octobe1· 31. 184 3-ullit ude of a. Lyrw. OB ' ER\'ATlON. ·- --- Double ultitudt• of a Lyr:n. Tim of chronometer. De.!?' . utut. s"...c . 1/ . 0 07 10 0 Mean time. h. Jllttt. sec. A 27 57 [ntlcx error = + I nun. 22 sec. RE 'ULT O.F CALCULATION. A(hanre. ft. IIlLI!. 8t'C. l 08 37. :3 111 in. ner. :36 :31 Longitude. De~ . 11t1:n •. ~cc. 119 45 09 Ml ... WNARY 'TA'f£0N AT THE DALLE~ OF THE COLIJMD[A. Determination of longitude, November 5, 1S43-altitudes ufthe sun. OH~E R , . AT IONS. Fl RST St: tll£5. ll SECOND SE RIES· ·- II - Double altituues of the Time of chronometer. Double altituJ c~ of the Time of <:hronometcr. ~;un's lower limb. ,, sun's lower limb. - - Deg. min. sec. h. 111/ll. sec. Derr. min. sec . h. min. sec. :30 13 40 !) H •': > 52.0 30 56 so !) 47 41.3 :30 25 10 45 3G.8 31 01 20 48 10.6 30 33 20 46 11.0 31 13 20 48 45 0 30 ~2 50 16 15.0 31 19 45 49 13.5 30 49 30 17 11.0 31 28 0 19 45.7 . - [ndcx error = + 1 min. 23 !'lee. RESULT OF CALCULATWN. Mean time. Advance. Lougitude. - ---------- - ------------1---------- h. mm. sec. lt. min. .c;ec. 8 37 ll 1 10 l4.L 439 [ 174 ] STATlOJ\" ON THE IHLL~ LN THE REAR OF THE Mf~ fON . Dete?'mination of lonn-it udc, No11ernber 5, 1843-alt il'udes oft lte sun. OB')ERVATIONS. Double altitudes of the sun's lower limb. Time of chronometer. Deg. IIL£1L. 49 25 1\J 12 49 47 49 52 49 5 Mean time. SI'C. 40 30 !10 50 00 h. 11 Index error = + 1 min. ~2 soc. RR. ULT OF CALCULATION. Ad¥ance. -----1-- - h. min. sec. 10 09 4:3 lt. nun. sec. 1 lO 07.4 mm. 17 l!) 19 20 2 ,c;ec. 20.5 11.0 15.5 ~0.0 55.0 Lon~itudo. D~.:;. mill. sec. 120 53 51 •• |
