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Astronomy Explained Upon Sir Isaac Newton's Principles / And made easy to those who have not studied mathematics cover

Astronomy Explained Upon Sir Isaac Newton's Principles / And made easy to those who have not studied mathematics

Chapter 74: Tab. IV. Shewing the Dominical Letters, Old Style, for 4200 Years after the Christian Æra.
By James Ferguson
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Science - Physics

About This Book

Aimed at readers without advanced mathematics, the author presents Newtonian astronomy in clear, practical terms, describing the solar system’s arrangement and demonstrating the Copernican model. Chapters explain planetary motions and phases, refute older geocentric ideas, and explore gravity as the physical cause of orbital behavior. The text treats light, refraction, atmospheric effects, and methods for measuring distances, time, and longitude, and it analyzes tides, eclipses, and the apparent motions of stars from different vantage points. Practical aids include tables, catalogs of eclipses, and descriptions of instruments and orreries used to illustrate the concepts.

G. N. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
A 26 19 5 26 12 33 19 12 26 19 5 26 12 5 26 12 33 19 12
B 27 13 6 27 13 34 20 13 27 20 6 27 13 6 20 13 34 20 6
C 28 14 7 21 14 35 21 7 28 21 7 28 14 7 21 14 28 21 7
D 29 15 8 22 15 29 22 8 29 15 8 29 15 1 22 15 29 22 8
E 30 16 2 23 16 30 23 9 30 16 9 23 16 2 23 9 30 23 9
F 24 17 3 24 10 31 24 10 31 17 10 24 17 3 24 10 31 17 10
G 25 18 4 25 11 32 18 11 32 18 4 25 18 4 25 11 32 18 11
This Table is adapted to the New Style.

Tab. III. Shewing the Dominical Letters, Old Style, for 4200 Years before the Christian Æra.

Before Christ Hundreds of Years.
Years less than an Hundred. 0 100 200 300 400 500 600
700 800 900 1000 1100 1200 1300
1400 1500 1600 1700 1800 1900 2000
2100 2200 2300 2400 2500 2600 2700
2800 2900 3000 3100 3200 3300 3400
3500 3600 3700 3800 3900 4000 4100
0 28 56 84 D C C B B A A G G F F E E D
1 29 57 85 E D C B A G F
2 30 58 86 F E D C B A G
3 31 59 87 G F E D C B A
4 32 60 88 B A A G G F F E E D D C C B
5 33 61 89 C B A G F E D
6 34 62 90 D C B A G F E
7 35 63 91 E D C B A G F
8 36 64 92 G F F E E D D C C B B A A G
9 37 65 93 A G F E D C B
10 38 66 94 B A G F E D C
11 39 67 95 C B A G F E D
12 40 68 96 E D D C C B B A A G G F F E
13 41 69 97 F E D C B A G
14 42 70 98 G F E D C B A
15 43 71 99 A G F E D C B
16 44 72   C B B A A G G F F E E D D C
17 45 73   D C B A G F E
18 46 74   E D C B A G F
19 47 75   F E D C B A G
20 48 76   A G G F F E E D D C C B B A
21 49 77   B A G F E D C
22 50 78   C B A G F E D
23 51 79   D C B A G F E
24 52 80   F E E D D C C B B A A G G F
25 53 81   G F E D C B A
26 54 82   A G F E D C B
27 55 83   B A G F E D C

Tab. IV. Shewing the Dominical Letters, Old Style, for 4200 Years after the Christian Æra.

After Christ Hundreds of Years.
Years less than an Hundred. 0 100 200 300 400 500 600
700 800 900 1000 1100 1200 1300
1400 1500 1600 1700 1800 1900 2000
2100 2200 2300 2400 2500 2600 2700
2800 2900 3000 3100 3200 3300 3400
3500 3600 3700 3800 3900 4000 4100
0 28 56 84 D C E D F E G F A G B A C B
1 29 57 85 B C D E F G A
2 30 58 86 A B C D E F G
3 31 59 87 G A B C D E F
4 32 60 88 F E G F A G B A C B D C E D
5 33 61 89 D E F G A B C
6 34 62 90 C D E F G A B
7 35 63 91 B C D E F G A
8 36 64 92 A G B A C B D C E D F E G F
9 37 65 93 F G A B C D E
10 38 66 94 E F G A B C D
11 39 67 95 D E F G A B C
12 40 68 96 C B D C E D F E G F A G B A
13 41 69 97 A B C D E F G
14 42 70 98 G A B C D E F
15 43 71 99 F G A B C D E
16 44 72   E D F E G F A G B A C B D C
17 45 73   C D E F G A B
18 46 74   B C D E F G A
19 47 75   A B C D E F G
20 48 76   G F A G B A C B D C E D F E
21 49 77   E F G A B C D
22 50 78   D E F G A B C
23 51 79   C D E F G A B
24 52 80   B A C B D C E D F E G F A G
25 53 81   G A B C D E F
26 54 82   F G A B C D E
27 55 83   E F G A B C D

Tab. V. The Dominical Letter, New Style, for 4000 Years after the Christian Æra.

After Christ. Hundreds of Years.
Years less than an Hundred. 100 200 300 400
500 600 700 800
900 1000 1100 1200
1300 1400 1500 1600
1700 1800 1900 2000
2100 2200 2300 2400
2500 2600 2700 2800
2900 3000 3100 3200
3300 3400 3500 3600
3700 3800 3900 4000
C E G B A
1 29 57 85 B D F G
2 30 58 86 A C E F
3 31 59 87 G B D E
4 32 60 88 F E A G C B D C
5 33 61 89 D F A B
6 34 62 90 C E G A
7 35 63 91 B D F G
8 36 64 92 A G C B C D F E
9 37 65 93 F A C D
10 38 66 94 E G B C
11 39 67 95 D F A B
12 40 68 96 C B E D G F A G
13 41 69 97 A C E F
14 42 70 98 G B D E
15 43 71 99 F A C D
16 44 72   E D G F B A C B
17 45 73   C E G A
18 46 74   B D F G
19 47 75   A C E F
20 48 76   G F B A D C E D
21 49 77   E G B C
22 50 78   D F A B
23 51 79   C E G A
24 52 80   B A D C F E G F
25 53 81   G B D E
26 54 82   F A C D
27 55 83   E G B C
28 56 84   D C F E A G B A

Tab. VI. Shewing the Days of the Months for both Styles by the Dominical Letters.

Week Day. A B C D E F G
January 31
October 31		 1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31        
1 2 3 4
Feb. 28-29
March 31
Nov. 30		      
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31  
1
April 30
July 31		            
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31          
1 2 3 4 5
August 31    
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31    
1 2
Septemb. 30
Decemb. 31		          
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            
1 2 3 4 5 6
May 31  
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31      
1 2 3
June 30        
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30