[E174 j 
534 
= : = 
ENCAMPMENT ON ASHLEY'S FORK. 
Determination of longitude, June 6, 1844-—altitudes of Arcturus. 
OBSERVATIONS. ; . 
Double altitudes of Arcturus. Time of chronometer. _ 
Deg. min. sec. h. min sec. 
‘ 51 31 ‘60 0 37.04 m 
, 51°. +09 50 21 34.5 
= 50 50s 40 22 25.0 
8 ¢ 50 34 00 2308.5 
- 50 1515 23 87.7 
: i 
— 
= Thermometer 46°. 
Index error = + 8 sec. 
5 * 
RESULT OF. ¢ ULATION. 
* é 
Mean time. ‘Retard. . Longitude. 
ie h. min, “ pe es 
: = —_———— > 
— s wie : rs r 
E Immersion of Jupiter’s second satellite. = 
; bed bd 
: : atm Ser ee 
: -* o5 i 
= Observed time. Mean time. © Longitude. — 
