Report of the exploring expedition to the Rocky Mountains in the year 1842, and to Oregon and north California in the years 1843-44 . 0 //.. min. 33 36 37 38 Dee. min. 57 3042 27 5042 05 1041 47 5041 27 50 h. min. 45 21 46 40 47 33 48 28 49 22 Index error = — 30 OF CALCULATION. Mean time. //. min. 34 59 Advance. /*. min. 06 Longitude. Immersion of the first satellite of Jupiter. Observed time. Mean time. Longitude. h. min. 01 28 h. min. 54 31 Deg. min. 48 21 24 [ 174 ] 370 NOON HALT ON A TRIBUTARY
Report of the exploring expedition to the Rocky Mountains in the year 1842, and to Oregon and north California in the years 1843-44 . 0 //.. min. 33 36 37 38 Dee. min. 57 3042 27 5042 05 1041 47 5041 27 50 h. min. 45 21 46 40 47 33 48 28 49 22 Index error = — 30 OF CALCULATION. Mean time. //. min. 34 59 Advance. /*. min. 06 Longitude. Immersion of the first satellite of Jupiter. Observed time. Mean time. Longitude. h. min. 01 28 h. min. 54 31 Deg. min. 48 21 24 [ 174 ] 370 NOON HALT ON A TRIBUTARY TO THE NORTH FORK OF PLATTE of latitude, August 3, 1S43—suns meridian altitude. Double altitude of the sunslower limb. Deg. min. 23 00 True central altitude. Deg. min. 57 40 Index error = + 1 min. 30 sec. Latitude. Deg. min. 35 48 ENCAMPMENT ON THE NORTH FORK OF PLA/TTE of longitude, August 5, 1843—altitudes of the sun. OBSERVATIONS. FIRST SERIES SECOND SERIES. double altitudes of the suns lower limb. Deg. min. sec. 50 32 45 50 46 55 50 57 40 51 09 10 51 19 50. Index error =+1 min. 47 OF CALCULATION. Mean time. Advance. h. min- 24 51 h. min. 08 Longitude. Deg. min. 22 27 Determination of latitude—meridian altitude of the sun. Double altitude of the sunslower limb. Deg. min. 18 45 True central altitude. Deg. min. 25 37 Latitude. Deg. min. 35 59 371 [ 174] NOON HALT ON A HIGH PLATEAU BETWEEN THE WATERS OF THE AT-LANTIC AND THE GULF OF CALIFORNIA. Determination of latitude, August 8,1S43—meridian altitude of the sun. Double altitude of the sunslower limb. True cential altitude. Latitude. Deg. min. 47 15 Deg. min. 09 38 Deg. min. 02 07 Index error = -f- 1 min. 42 sec. NOON HALT AT THE GAP IN THE SWEET WATER of latitude, August 9, 1843—meridian altitude of the sun. Double altitude of the su
Size: 2184px × 1144px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorunitedstatesarmycorps, bookcentury1800, bookdecade1840
