OCR Text |
Show I t74 E Tf'J\MPMENT 0. T PAX:\"".\C'K RTVER. Determination oj latitude Sept . 17 1 "' 1.3-a/liLudes of Pola~·is. 0 lt::;E RV \'flO~~. Doubk :lltitmlc..; of Polarit<. Tim of chronom ter. Dr~. )II/ /1. 5 :3 i 8fJ 3 b' !) :.i ~ 39 !) ~ 1 !) 1\ f'> 4:1 N-, 41 I) .J f'l f> 4() True nlll tudr. JJcg. mm. cc. 42 50 30 cc. 0 () ~0 . 10 '0 10 ('0 JO 1 I) ::'0 0 lndt•x error = + l min. 3G sec. RE ULT OF' 'AJ, 'U LA'l'IO~. Mean time. h. 1r1111. sec. 7 3G 37 h. IIII I/. 8{1'. ~o: :H .) -) :Jli 01 :37 ~ . 1 ' 4:~ :l9 53 41 29 4~ 57 4:1 5;) 44 .')1 -1G 11 Latituuc. lJeg. wm. ~u. 42 44. 25 Determination of latitude Sept. 17, l 43-·meridian altitudcsofa..li.quilm. o n~ERVA'l'JO'N .• Douhl altitude;; of n Al)Uilm. 'l'i mt• of chronometer. DC[.(· min. 11 l 12 111 17 111 21 11 1 •l•) """' 111 23 111 26 1 1 1 26 111 25 111 25 111 24 111 21 True altitude. JJeg. min. ec. 55 42 02 uc. 50 50 20 ~ 10 50 20 00 l !) 10 00 55 lndcx error =- + l min. 36 sec. RESULT OF CALCUJ~ATIO~. Apparent time of transit. h. tnio. sec. 9 0,1 41 h. R 9 rn 1/1. sec. 49 41 51 11 54 1 55 40 57 10 00 0 02 33 04 OG 05 34 07 13 0 59 Latitude. J)eg. min. sec. 42 44 45 ------------------------·--------------------------------- 409 [ 174 J T.~C'A 'fPi\tE. ·rr 0~ p -\. ~Af' K TIT\ E 1\ Detet·minrttion n.f lrJ11 ,.it1ul(', S •p!emJ'f'l' 1 ... , 1 I ," J-al tl·l ur1 e s of a. L.yrm. on-.,r, HV . \ '1' [Q~S. Double alutnd<'s or II Lyrl\'. Tilllr of ehronomctrr. ])r[!. .').) 11/tf/, 55 54 51 53 53 Mean t1me. h. 1.1in. sec. 0 31 15 51 23 53 ~6 /:.•) •J <o~ 32 a. :w ~0 20 :;31) 10 .50 Index rrror =- + l miu. :3!} bCC. h. 1 HESULT OF CALCULATION. Advance . h. min. sec. 1 04 12. rn in. 31 33 ~1, 36 :37 39 sec . 14.0 a. m . Ol'l.2 40.0 00.4 51.0 22.0 J.ongituJe. - Entc1·sion of Jupiter's first sa t ellite. Observed time. )fean lime. Longitude. h. min. ec. 1 20 21 Dcg. min. sec. 112 32 21 lt. mnz. sec. 0 16 08 •• |