[ 174°} 
Deterniination of meee July 18, ier tide ud Polaris. 
OBSERVATIONS, 
Double altitudes of Polaris. Time of chronometer. 
Deg. min. — see. CL ee ee ey 
74 «44 10 48° 5 B4y ae 
? a ; : 50) 45 . 
Index errer = ——.30 sec. t - 
RESULT OF CALCULATION. 
True altitude. _ Mean time. Latitude. nm 
Determination of longitude, July 13, 1843—altitudes of « Cygni. 
OBSERVATIONS. - 
Double altitudes of a Cygni. | Time of chronometer. 
= aaa ome SRT es Sse 
Deg. PEGS min, —8€e. 
84 22 40 s 54 65.0. 
— . 18 = ote 
oo ee ppg Bg «(17.5 
os 6S Ye ee ae 
Sa sess 87 19 50 03. -_ 13.0. — 
Index error — — 30 sec. et - 
RESULT OF CALCULATION: © 62 | 
Mean time. Advance. ~ Longitude. ~~ <= 
* 
CITAIVOI“ 
‘ * 
peeks od eS ges at ‘sees © Led. a cag 
ne cclaeilia oa 1 ements ae ee ie ~ 
os ~ HM m. - & 
Pe setae 26 i 3% ot ee a 
4 . ‘ =a . er 
ah. St ae ee ee ot” 
; 4 ~ i a. 
“aed ees a J eee : 
ss sae Pte 3 = 
