The quantities opposite the different numbers of hours, minutes, and seconds, are to be subtracted to obtain the equivalent interval of mean solar time for any period. 41 11 12 13 14 15 16 17 18 19 20 1 48.421 8.134 11 12 13 14 15 16 17 18 19 20 1.807 1.971 2.136 2.300 2.464 2.628 2.793 2.957 3.121 3.285 6.735 6.900 7.064 7.228 7.392 7.557 7.721 7.885 8.050 8.214 11 12 13 14 15 16 17 18 19 20 0.030 0.033 0.036 0.038 0.041 0.044 0.047 0.049 0.052 0.055 41 42 43 44 45 46 47 48 49 50 0.112 0.115 0.118 0.120 0.123 0.126 0.128 0.131 0.134 0.137 47 48 49 50 21 3 26.986 21 3.450 3.614 3.778 3.943 4.107 4.271 4.436 4.600 4.764 4.928 51 52 53 54 55 56 57 58 59 60 8.378 8.542 8.707 8.871 9.035 9.199 9.364 9.528 9.692 9.856 21 22 23 24 25 26 27 28 29 30 0.057 0.060 0.063 0.066 0.068 0.071 0.074 0.076 0.079 0.082 51 52 53 54 55 56 57 58 59 60 0.140 0.142 0.145 0.148 0.150 0.153 0.156 0.159 0.161 0.164 The quantities opposite the different numbers of hours, minutes, and seconds, are to be added to obtain the equivalent interval of sidereal time for any period. - Vide Table of Equivalents, page 489 of the “ Nautical Almanac." This table, and the preceding are calculated, from the ratio of a sidereal to a mean solar day-twentyfour hours of mean time being equivalent to 24 .. 3 .. 56.5554 sidereal time. TABLE III. FOR CONVERTING SPACE INTO TIME, AND VICE VERSA. SPACE INTO TIME. TIME INTO SPACE. To convert degrees and parts of the Equator To convert Sidereal Time into degrees and parts into Sidereal Time ; or to convert degrees and of the Equator ; or to convert Time into degrees parts of Terrestrial Longitude into Time. and parts of Terrestrial Longitude. Young's Refractions have been selected from among those by different eminent Astronomers, given in Dr. Pearson's Tables. BB 7 7 7 7 7 6 13.3 13.1 12.8 12.6 12.3 12.1 %%%%%们 85 83 82 80 79 77 14, 0 10 20 30 40 50 3,49.9 3,47.1 3,44.4 3,41.8 3,39.2 3,36.7 .28 .28 .27 .26 .26 .25 7.70 7.61 7.52 7.43 7.34 7.26 .469 .464 .458 .453 .448 .444 15, 0 30 16, .6 .6 .6 .6 . 5 . 5 11.9 11.7 11.5 11.3 11.1 11.0 76 74 73 71 71 . 70 3, 34.3 3, 27.3 3, 20.6 3, 14.4 3, 8.5 3, 2.9 .24 .22 .21 .20 .19 .18 30 0 30 17 , 8, 0 10 20 30 40 50 6, 35 6, 28 6'21 6, 14 6, 7 6, 0 9, 0 10 20 30 40 50 5,54 5,47 5,41 5,36 5,30 5, 25 10,0 10 20 30 40 50 10 5, 20 5, 15 5,10 5, 5 5, 0 4,56 11,0 10 20 30 40 50 4,51 4,47 4,43 4,39 4,35 7,31 12, 0 10 20 30 40 50 4, 28.1 4, 24.4 4, 20.1 4,17.3 4,13.9 4, 10.7 13, 0 4, 7.5 4, 4.4 4, 1.4 3,58.4 3,55.5 3,52.6 10 20 30 40 50 > .05 2.68 .161 .29 40, .29 41, |
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