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Show • [ 174 J 642 r~NCAMPMEN'J' ON TlfE ltiGIIT BANK OF THE N. f"OIO{ 01" PJ.A'l"l'E RIVER, MOIJTII <H' !\~II ('IO~J·;I\ !JetermJnation of /at itude, /•,'epte1ltber ~-. > l 42-allilurie of Polan·~. OHSERVATTONS. Double altitude of PolariH. 'J'.imo of chronomct.or. Dr.g. TIH1L. 83 42 8:3 11 83 '1-1 3 45 83 16 83 18 83 49 83 50 83 51 83 63 , I True ul titudc. Detj. 41 min. 50 sec. 67 uc. 00 10 50 30 50 10 60 00 40 40 Thermometer 70°.3. Index error -= - 1 min. 32 s c. UESULT OF CALCULA'J'ION. h. 9 Mean t.ime. min,. ~~ sec. 61 IL. mtn. 11 LO 11 IR 11 21 1 I 2:l I I 21 26 28 :iO 31 33 sec. 2!) 59 07 20 57 56 30 ll 41 28 Latitude. mm• . 18 - - sec. 19 eplember 8, 18 ·l2-altilude of a. ./lquilm in the meridian. Double altitude of a Aquil:c. Dcg. mm. sec. 114 26 10 OBSEltVATlON ' . True central altitude. Deg . mm. sec. 67 11 16 r· Latitude. DeK. min. sec. 41 16 19 643 [ 174 ] ,E:NCAMPMEN'J' ON 'I'JU~ NOH'fJJ I•'OHV OF Pl.t\'l"l'l•; J•Iv CAMI'. • " }';U-l.OWJ~U CAVHE Determinal ion of latitude' 8C1J(ember 9 1 8•1() lt ·1 d if · ~- , ...,-a t u e o Polar-1s. OHSJo: H VA 'I' IONS. Double allilullc of Poluri.~. Ti uw of <:hronom ·ter. --...,J II. min. 8ec. Jl 13 52 I 1 I() 39 1 l ~0 01 11 23 13 11 27 33 lJt!g. 711 i.n. .~cc. 83 36 l)fi sa :~ 1 83 40 20 83 4:~ 20 83 4 <i 2o Index error - 1 min. 32 sec. RE 'UJ.'J' 0.1<~ AL CUJ,.A TION. -------.------ True nlti.tud . ~~~---------~--- Mean timr. Deg. miu. sec. 41 4 40 lt. min. 8ec. 9 17 42 Deg. mm. sec. 41 14 44 September 9, 1 842-ultitude of the sun in the 1neridian. OlJ EHVATION • -- Double altitude of the Aun's lower limb. 'I'ru c<mtrnl altitudC'. J,atitude. - Deg. 107 min. 36 uc. 0 lJeg. min. 64 02 . ~rc. 37 'l'h rmomctcr g4 °. Deg. min . 41 11 sec. 17 |
