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Show (}OS ·u EN(' , \lP,\-IKYl' (),. H1 I'() H• I\ c)I•' f.• () '' ( l i•; Il l()J.I·~ Cl El~,\., u,150 FEl~l' ABOVE 'rii~;1.~:1 ( ; ( I Ll•' u L•' .u:x l co. !Jet 1•;·,ni n.fllinn (Ur lal i lu .lf!, Ju~l} 13, 1812-ultilwlc of Polaris. l)t•g. min. HO :l / ~ () :! !) H.l I:~ T nH ul tilt.de. T>rg. / lt iiJ. 40 l!} srr. :w :)o 00 Ol!SEHv i\TtONS. M<'ll ll t irnc. lt. min. Ll ~ sec. w Time of chronometer. h. mtn. 1 l :I!) 1\ 3H 11 4l 31'(:. 16 10 :!1 Latitude. min. 08 sec. 34 IJP!t'7'minotion of longitudt•, July 13, 1842-a/titude of a. .llquil;e. OHSr; n V ATJON S. ---- - Double altitude of a Aquila1, Time of chronometer. --- /)I'~. mio. M'C . h. fflt1l . src. 1-3:3 3G 30 1 I 1(i 45 H·1 21 20 l I 49 oo 85 () /) 40 11 51 22 ~5 t l 10 11 53 J4. 6 :14 50 ll 56 01 81 12 10 • 11 68 05 HF.SU LT <H' CA LCU LATlON. ----- ---------.-------------------~----------------- M Rn time. AJvancc. I.ongi tude. lt. m•n. .~Pc. 9 11 'l'l lt. mio. .•ec. 2 10 3 ~ DPf!. 111111 •• ~rr. 105 13 38 ~---------------- GOn [ 174 ] • E l\GAMPvtE~ T ON ]{fJHcli~ CHEEI . ]), term in at ion o.flougit utlt', Ju~'J 1·1, l.S·l2- u tl it udc of o. .flq uil<c. Oll'iEHVATIOXS. Double altitutle of tl 'l'irnc of chronorn,•tcr. Aqutlro. Double ultitllu · of 11 Time of thronomcter. quil:.o. Det:· mzn. .~cc. 71 3:3 00 72 27 30 Mean time. h. mir1. sec. 9 01 29 It . 1 l 11 nun. 07 09 srr. 01 39 n('..'.', · 7:j 71 Tnd<•x error .... + J 5 Rrc. min. 20 16 HESlJL'r OJ<' CALCULATION. Advance. ft. 171 in.. .'ICC. 2 09 31 • t!C • 10 50 De~. 101 lt. 11 ll 111 i 11. $l'C. 12 16 IS 01 T.ong itudc. nun. sec. 69 2:J Dete'rmination of latitude, .Ju~IJ 11,1 ·12-altilude of Polaris. OBSEHVATIONS. - Double altitude of Polaris. Time of chronometer. De g. .. 82 rmn. ·'CC. ft. '11Hn. sec. 05 30 12 00 09 82 09 30 12 ll 09 82 l 1 30 12 13 f>7 82 15 30 12 19 lG RESULT OP CALCULATION. True altitude. /)~'g. mi11. 41 01 sec. 23 - - ------ ft. 10 Mean time. m1n. o:J sec. 10 L atitude. De~. mm. 1i 40 • sec. 13 |