Arg.

Time fr.

noon.

TO REDUCE THE DECLINATION, RIGHT ASCENSION, HORIZONTAL PARALLAX
AND SEMIDIAMETER OF THE MOON TO ANY GIVEN MERIDIAN, AND
TO ANY GIVEN TIME UNDER THAT MERIDIAN.

Arg. Variation of the Moon's Declination in twelve Hours.

Arg. Long.

55/13° 0/13° 53° 103 15° 3° 20/13° 25′ 3° 30' 3° 3513° 4013°45/13° 50′3°55'4° 0' of Sh.

Time fr. 2° 55' 3° 0'3° 53° 103° 15'3° 20′3° 25′ 3° 30′ 3° 35'3° 403°45′3° 50′3°55′4° 0

Long.

TO REDUCE THE TIME OF THE MOON'S PASSAGE OVER THE MERIDIAN OF GREENWICH, TO THE TIME OF ITS PASSAGE OVER ANY

OTHER MERIDIAN.

Arg.

Time from

Moon's Transit

Arg. Daily Retardation of the Moon's passing the Meridian.
4+ 46' 48 50 52 54 56 58 60′| 62 | 64 66′

Arg. Long.

ERROR OF OBSERVATION, ARISING FROM A DEVIATION OF ONE MINute, of the
PLANE OF THE CENTRAL MIRROR OF THE CIRCULAR
INSTRUMENT, FROM THE PERPENDICULAR.

ERROR OF OBSERVATION, ARISING FROM AN ERROR IN THE LINE OF

COLLIMATION.

Arg. Error in the Line of Collimation.

11

80 90 100 110 120 130 140 150 16 90 100 110 120 130 140 150 16 0 17 9 10 0 110 120 130 140 150 160 17 0 18 9 10 0 110 120 130 140 160 170 180 19 10 110 120 130 140 150 170 130 19 0 20 11 120 130 140 150 160 180 190 200 22 120 130 150 160 170 190 200 210 23 13 0 140 150 170 180 200 210 220 24 14 0 150 160 180 190 210 220 240 25 140 160 170 180 200 220 230 25 0 27 15 0 160 180 190 210 230 240 26 0 28 16 0 170 190 200 220 240 250 27 0 29 9 10 11 12 14 15 16 0 180 200 210 230 250 270 29 0 31

7 8 9

8

12

10 11 12

10 11 12 13

10 11 12 14

9 11 12 13 14

8 9 10 12 13 14 16

848

Arg. Observ. Angle.

1367

0

50 50 60 60

0 60 70 70

8

60 60

20

22

70 70 80
80 80 90 10

90

9 0 10

10 0 11

4556

22223

3

122222

9 10 11 13 14 15 17 0 200 220 240 260 280 300 32 0 35 9 10 12 13 15 16 18 19 0 210 230 250 270 290 310 34 0 36 8 10 11 12 14 15 17 18 20 0 220 240 260 280 310 330 35 0 38 9 10 11 13 14 16 17 19 21 0 230 250 270 290 320 340 37 0 39 9 10 12 13 15 16 18 20 22

5555566

3

42

3

44

3

46

3

48

3

50

52

54

56

58

60

62

64

66

67

0 240 260 280 310 330 350 38

0 41

7 9 11 12 14 15 17 19 21 23 0 250 270 290 320 340 370 40
710 11 13 14 16 18 20 21 24 0 260 280 310 330 360 380 41
710 12 13 15 16 18 20 22 25 0 270 290 320 340 370 400 43 0 46
10 12 13 15 17 19 21 23 25 0 280 300 330 350 380 410 44 0 47
8 11 13 14 16 18 20 22 24 26 0 290 310 340 370 400 430 46 0 49
20 23 25 27 0 300 330 350 380 410 440 47 0 51
26 28 10 310 340 370 400 430 460 490 53
29 0 320 350 380 410 440 470 51 055
30 10 330 360 390 420 460 490 530 57
32 0 340 370 410 440 470 510 550 59

0 43

0 44

88

90

92

94

96

98

100

102

104

2222222233

3

106

Observ.

Angle.

7 10 13 15 17 20 22 24 27 30 33 0 360 390 420 460 490 530 57 1 1 7 10 14 16 18 20 23 25 28 31 34 0 370 400 440 470 510 550 59 1 3 711 14 17 18 21 23 26 29 32 35 0 380 420 450 490 530 571 115 11 15 17 19 22 24 27 30 33 36 10 400 430 470 510 550 591 8 11 15 18 20 22 25 28 31 34 37 0 410 450 490 520 571 8 12 16 18 21 23 26 29 32 35 39 0 420 460 500 540 591 8 12 17 19 21 24 27 30 33 37 40 0 440 480 520 561 11 9 13 17 20 22 25 28 31 34 38 42 0 460 500 540 581 9 13 18 20 23 26 29 32 36 39 43 0 470 51 561 61 3914 18 21 24 27 30 34 37 41 45 0 490 530 581 108 3 10 14 19 22 25 28 31 35 38 42 46 10 510 551 110 3 10 15 20 22 26 29 32 36 40 44 48 0 530 571 112 3 10 15 20 23 27 30 34 37 41 46 50 0 55'1 01 114 3 11 16 21 24 28 31 35 39 43 48 520 571 116 3 11 16 22 25 29 32 36 40 45 49 54 0 591 41 11 161 221 281 34 1 41 118 3 12 17 23 26 30 34 38 142 46 51 56 1 11 71 131 11 21 311 38 1 45 120 3 12 18 24 27 31 35 39 44 48 53 58 41 101 161 221 21 351 42 1 49 10202428 30 32 34 36 38 40 42' 144' 50' 46' 48' 52 54 56' 58' Error in the Line of Collimation.

ERROR OF OBSERVATION, ARISING FROM AN ERROR IN THE LINE OF

18

20

24

26

28

30

110 110 120 13

110 110 120 13 0 14 0 14 0 15 0 16 0 17 0 18 0 19

0 19 0 20 0 21

0 120 130 130 140 150 160 170 180 190 200 21 0 220 230 24 0 13 0 140 150 160 170 180 190 200 210 220 230 240 250 26 0 14 0 15 0 16 0 170 180 190 200 210 23 0 24 0 0 26 0 27 0 29 0 16 0 16 0 180 190 200 210 220 230 250 260 27 0 28 0 30 0 31 0 170 180 190 200 21 0 23 024 025 0 270 280 290 310 320 34 0 180 190 200 22 0 23

32

34

36

38

40

42

0 26

44

0 27

46

0 24 0 260 270 280 300 31 0 33 0 35 0 36 0 19 0 20 0 22 0 25 025 026 027 029 0 30 0 32 0 340 350 37 0 39 0 210 22 0 23 0 25 0 26 0 28 0 29 0 31 0 33 034 0 36 0 38 0 390 41 0 250 250 260 280 290 31 0 33 0 35 25 0 26 0 280 290 310 330 35 0 280 290 31 0 33 0 35 0 37 0 27 0 29 0 31 9 33 0 35 0 37 0 39 0 290 310 320 35 0 370 39 0 41 0 28 0 30 0 32 0 34 0 360 38 0 410 43

1 23 1 28 1 32 1 37 1 42 1 47 1 52 1 57 1 26 1 31 1 36 1 40 1 46 1 511 56 2 2 1 29 1 34 1 39 1 44 1 50 1 55 2 0 2 6 1 9 1 14 1 18 1 23 1 27 1 32 1 38 1 53 1 59 2 4 2 10 90 1 7 1 11 1 16 1 21 1 26 1 30 1 36 1 41 1 46 152 1 57 2 32 9 2 15 92 1 10 1 14 1 19 1 24 1 39 1 44 1 50 1 56 2 22 72 14 2 20 1 43 1 48 1 54 2 02 6 2 12 2 18 2 25 1 46 1 52 1 50 1 56 2

1 43 1 48

58 2
4 2 10 2 17 2 93
2 2 8 2 15

2 30

2 22 2 28

235

1 54 2

02 72 13 2 20

2 27

2 34

2 41

1 33 1 38 1 45 1 511 58 2 5 2 12 2 19 2 26 2 34
1 36 1 42 1 49 1 55 2 22 9 2 17 2 24 2 32 2 39 2 48 2 56 3 43 13
1 39 1 46 1 53 2 0 2 7 2 14 2 22 2 29 2 37 2 45 2 54 3 3 3 11 3 20
1 43 1 50 1 57 2 42 12 2 19 2 27 2 35 2 43 2 52 3 1 3 10 3 19 3 28
1 48 1 54 2 22 9 2 17 2 25 2 33 2 41 2 50 2 58 3 8 3 17 3 27 3 36
1 52 1 59 2 72 14 2 22 2 31 2 39 2 48 2 57 3 6 3 15 3 25 3 35 3 45
1 56 2 4 2 12 2 20 2 28 2 37 2 46 2 55 3 4 3 14 3 25 3 33 3 44 3 54
1° 21 1° 41 1° 6 1° 84 1°10 1°12' 1°14' 1°16 1°18' 1°20 1°22 1°24' 1°26' 1°28'

2 42

2 49

2 58 3 6

ERROR OF OBSERVATION, ARISING FROM AN ERROR IN THE LINE OF

COLLIMATION.

Arg. Error of the Line of Collimation.

1 40 1 42 1 44 1 46 1 48 1 50 1 52 1 56|

2

5

10

12

0 15

14

0 17

16

0 20

18

0 22

60 60 70 70 70 80 80 8 0 9 0 90 90 9 0 10
0 12 0 13 0 13 0 14 0 15 0 15 0 16 0 17 0 17 0 18 0 18 0 19 0 20
0 15 0 16 0 17 0 18 0 180 190 200 200 210 220 230 24
0 180 190 200 200 210 220 230 240 250 260 27 0 29
0 210 220 230 23 024 025 0 270 280 290 300 31 0 33
0 230 240 250 260 280 290 300 31 0 320 330 34 0 37
0 260 270 280 300 310 320 33 0 35 0 36 0 37
0 290 300 310 33

1 53 1 58 2
1 45 1 49 1 54 1 58 2 32 72 12 2 17 2 27
149 1 53 1 58 2 32 72 12 2 17 2 22 2 32
1 53 1 58 2 32 72 12 2 17 2 232 28 2 38
22 72 12 2 17 2 23 2 28 2 33 2 44
22 72 12 2 17 2 22 2 28 2 33 2 39 2 51
12 6 2 11 2 17 2 22 2 28 2 33 2 39 2 45 2 57
12 6 2 11 2 16 2 22 2 27 2 33 2 39 2 45 2 51 3 3
2 33
2 452 512 57 3 10
2 45 2 51 9 57 S 4 3 17
2 512 57 3 4 3 10 3 24

22
22 72 122 21

6 2 16

225

2 31

2.38

244

2.50 256 3 3

3 10

3 17

2 39

3 24

3 31

84

2

72 13 2 19 2 25 2 312 37 2 44

2 50

2

86

2 12 2 18 2 24 2 30 2 36 2 43 2 50 2 56 3

57 3 33 10 3 17 3 32
S3 10 3 17 3 24 3 39

3.39 3 46 355

2 55 3 2 3 10 3 19 3 27 3 36 3 44 3 53 4 24 11 4 21
3 35 3 44 3 52 4 24 11 4 21
5.43 3 52 4 14 11 4 20

4 30 4 50

5 11

4 30 4 30 4 40 4 50 5 12 3514 0 4 10 4 20 4 30 4 40 4 51 5 15 23 3 21 3 31 3 40 3 50 3 59 4 9 4 19 4 30 4 40 4 51 5 25 13 5 35 3 29 3 39 3 49 3 58 4 8 4 19 4 29 4 40 4 51 5 2 5 14 5 25 5 48 3 37 3 47 3 57 4 8 4 18 4 29 4 40 4 51 5 25 14 5 26 5 37 6 2 3 46 3 56 4 74 17 4 28 4 40 4 51 5 25 14 5 26 5 38 5 50 6 16 113 3 55 4 6 4 17 4 28 4 39 4 50 5 25 14 5 26 5 39 5 52 6 4 6 31 120 4 5 4 16 4 27 4 39 4 50 5 25 15 5 27 5 40 1°30 1°32 1°34′ 1°364 1°38 140 1°42′ 21°44' 1° 46 Observ.

4 40 5 1

5 22

5 34