To Students of Arctic Exploration the Geographic Position of Camp Jesup And Th
To Students of Arctic Exploration the Geographic Position of Camp Jesup And Th
Thomas Hamlin Hubbard
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= 0. 05807 18 6 18 86 8 16 00 80 48 02 log (r^) . . = 0. 05745 + 9 Parallax True h of sun's center True zenith distance (i log a .... = 1. 72925 log tan « . = 0. 98610 6 88 48 16 68 07 1) log r .... = 2. 72280 + 4 28 42 6 = Latitude of point provided that the n the 70th meridian, t local noon. r = 528" = 8' 48" Had the temperature been -j- 10* F a similar computation would give r = 8' 24", only 24" less than for temp. = — 100. 87 44 49 of observation observer was o and observed a COMPUTATION OF... PABALLAX. TT = 8". 8, log w .... = 0. 944 log sin « . . = 9. 997 log parallax = 0. 941 parallax. . . == 9" ir TBI StrH WAS obsebved crossivo THE 70tH XESIDIAN. 6' = -f 40 24' 12" A = -f 4 80 S = + 4 28 42 TO STUDENTS OF ABOTIC EXPLORATION 695 CORRECTIONS TO LATTTUDE FOR EX-MERIDIAN OBSERVATIONS. The following table was computed from the formula given by Chauvenet (vol. 1, p. 233) for the reduction of ex-meridian obser- vations for latitude, and the formula already given for the com- putation of latitude from observations on the meridian.
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