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0.98 .95 .93 91 .89 .87

Young's Refractions have been selected from among those, by different eminent Astronomers, given in Dr. Pearson's Tables.

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21

15 46

16 18 13:46

TABLE VII.

's

AUGMENTATION OF D SEMIDIAMETER ACCORDING TO HER

INCREASE IN ALTITUDE.

The Moon's horizontal semidiameter is found in page 3 of each month in the Nautical Almanac, for every day at mean noon and midnight at Greenwich; and the Sun's in page 2, for every mean noon.

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0.97 1.94 2.90 3.86 4.80 5.73 6.65 7.54 8:42

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0:00 0.71 1:41 2.11 2.81 3.50 4.17 4.84 5.49 6.13 6075 7.35 7.93 8:49 9.03

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4.76 5.52 6•27 7.00 7.71 8.40 9.07 9:72 10:34 10.93 11:49

5.18 5.88 6:56 7.23 7.88 8.50 9.10 9.68 10:23 10.76 11.26 11.72 12:15 12:55

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1.83 2.73 3.63 4.52 5.39 6.26 7.11 7.93 8.74 9.52 10.28 11:02 11.72 12:39 13:03 13.63 14:19 14:72 15.20 15.64

6.68 7.46 8.22 8.96 9.67 10:36 11:02 11.65 12:25 12.81

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16.13

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13.83
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13:40
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12.91

16.60

13.24

16.04

15.41

66
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17.03 17:40 17.73

15.70 15.95

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81

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13:37

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18.24 18.42 18:55

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84
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15:41
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17.35
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13:52

14.48

16:49

18.62

13:54

14.50

15.49

16:51

18.65

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