This webpage belongs to www.alexandriancomputus.net, which is a website promoting [Jan Zuidhoek (2019) Reconstructing Metonic 19-year Lunar Cycles (on the basis of NASA’s Six Millennium Catalog of Phases of the Moon): Zwolle], and represents the modern edition of Dionysius Exiguus’ Paschal table contained in this pioneering book, which is available via this website.

 

 

Dionysius Exiguus’ Paschal Table

In this table: A = year of the Christian era, B = indiction number (not essential), C = epact = lunar age on 22 March, D = concurrent = weekday number of 24 March, E = lunar cycle year number (not essential), F = Julian calendar date of the Paschal full moon,

G = Julian calendar date of Paschal Sunday, and

H = lunar age on Paschal Sunday. In this table only columns C, E, and F have a period of 19 years.

A

B

C

D

E

F

G

H

532

533

534

535

536

537

538

542

539

540

541

543

544

545

546

547

548

549

550

10

11

12

13

14

15

1

2

3

4

5

6

7

8

9

10

11

12

13

nulla

11

22

3

14

25

6

17

28

9

20

1

12

23

4

15

26

7

18

4

5

6

7

2

3

4

5

7

1

2

3

5

6

7

1

3

4

5

17

18

19

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

5 April

25 March

13 April

2 April

22 March

10 April

30 March

18 April

7 April

27 March

15 April

4 April

24 March

12 April

1 April

21 March

9 April

29 March

17 April

11 April

27 March

16 April

8 April

23 March

12 April

4 April

24 April

8 April

31 March

20 April

5 April

27 March

16 April

8 April

24 March

12 April

4 April

24 April

20

16

17

20

15

16

19

20

15

18

19

15

17

18

21

17

17

20

21

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

14

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

1

2

nulla

11

22

3

14

25

6

17

28

9

20

1

12

23

4

15

26

7

18

6

1

2

3

4

6

7

1

2

4

5

6

7

2

3

4

5

7

1

17

18

19

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

5 April

25 March

13 April

2 April

22 March

10 April

30 March

18 April

7 April

27 March

15 April

4 April

24 March

12 April

1 April

21 March

9 April

29 March

17 April

9 April

31 March

20 April

5 April

28 March

16 April

1 April

21 April

13 April

28 March

17 April

9 April

25 March

13 April

5 April

28 March

10 April

1 April

21 April

18

20

21

17

20

20

16

17

20

15

16

19

15

15

18

21

15

17

18

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

3

4

5

6

7

8

9

10

11

12

13

14

15

1

2

3

4

5

6

nulla

11

22

3

14

25

6

17

28

9

20

1

12

23

4

15

26

7

18

2

3

5

6

7

1

3

4

5

6

1

2

3

4

6

7

1

2

4

17

18

19

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

5 April

25 March

13 April

2 April

22 March

10 April

30 March

18 April

7 April

27 March

15 April

4 April

24 March

12 April

1 April

21 March

9 April

29 March

17 April

6 April

29 March

17 April

9 April

25 March

14 April

5 April

25 April

10 April

2 April

21 April

6 April

29 March

18 April

2 April

25 March

14 April

30 March

18 April

15

18

18

21

17

18

20

21

17

20

20

16

19

20

15

18

19

15

15

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

7

8

9

10

11

12

13

14

15

1

2

3

4

5

6

7

8

9

10

nulla

11

22

3

14

25

6

17

28

9

20

1

12

23

4

15

26

7

18

5

6

7

2

3

4

5

7

1

2

3

5

6

7

1

3

4

5

6

17

18

19

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

5 April

25 March

13 April

2 April

22 March

10 April

30 March

18 April

7 April

27 March

15 April

4 April

24 March

12 April

1 April

21 March

9 April

29 March

17 April

10 April

26 March

15 April

6 April

29 March

11 April

3 April

22 April

14 April

30 March

19 April

10 April

26 March

15 April

7 April

22 March

11 April

3 April

23 April

19

15

16

18

21

15

18

18

21

17

18

20

16

17

20

15

16

19

20

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

11

12

13

14

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

nulla

11

22

3

14

25

6

17

28

9

20

1

12

23

4

15

26

7

18

1

2

3

4

6

7

1

2

4

5

6

7

2

3

4

5

7

1

2

17

18

19

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

5 April

25 March

13 April

2 April

22 March

10 April

30 March

18 April

7 April

27 March

15 April

4 April

24 March

12 April

1 April

21 March

9 April

29 March

17 April

7 April

30 March

19 April

4 April

26 March

15 April

31 March

20 April

11 April

3 April

16 April

8 April

30 March

19 April

4 April

27 March

15 April

31 March

20 April

16

19

20

16

18

19

15

16

18

21

15

18

20

21

17

20

20

16

17

 

 

Dionysius Exiguus’ Paschal table, covering the 95 years AD 532‑626, was composed in AD 525, Beda Venerabilis’ Easter table, covering the 532 years AD 532‑1063, was composed in AD 725. In fact, the latter is an exact extension of the former. In the book in question the former covers the 3 pages 103‑105 while the latter covers the 15 pages 106‑120.

We observe that the 19-year periodic sequence of lunar cycle year numbers contained in Dionysius Exiguus’ Paschal Table does not refer to the classical Alexandrian 19-year lunar cycle (which forms the Metonic basic structure of this Paschal table), but, according to Table 8, seems to refer to the (about thirty years older) Festal Index 19‑year lunar cycle.

 

 

 

 

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© Jan Zuidhoek 2019-2021