Calendar with Medical and Astrological Texts (1424) - Page 2

⚠The manuscript page contains complex astronomical data with significant rubrication. There is visible ink bleed-through from the reverse side of the leaf. The script is a late medieval or early modern cursive/bastarda with numerous abbreviations.

one day original: "unus dres" (likely a scribal error for "dies")

Lunar Cycle	Solar Cycle	Lunar Cycle	Solar Cycle	act of night	quantity of night	quantity of year	quantity from noon
Jan	March	April	Sept	time	night from	of night	of year
spring time	spring time	autumn time original: "tempus hūno" (likely hiemno/autumnal)	opposite time	they fall	to to	from that	night
h m	h m	h m	h m	h m	h m	h m	h m


1	a	19 23 29	14 2 21	1 4 43			7 9 9	8 3	3 46 G 4
2	b				8 21 13	4	9 8 8	3 3	9 4 G 6
3	c		8 9 23	8 18	G			4 9 3	8 2 3 48 G A
4	d	8 3 48	12 21 22		12 18 11	9	9 2 8	1 3	3 49 G B
5	e	16 13 48	1 8 9 A	16 9 24		9	9 2 8	0 2	0 5 8 G 8
6	f		9 13 24	9 21 31	1 9	9	9 9 0	A 9 8	2 G 10
7	g	13 6 43			9 16	4	9 8 9	A 4 1	3 G 11
8	a			17 0 9 6	17 8 3	17 1 20 28	9 8 9	A 9 6	4 G 11
9	b	2 10 31			G 16	12	5 8 A A	A 4 8	5 G 13
10	c		6 8 2 10	13 3		9	8 G	A 9 3	A 12
11	d	10 9 21			18 10 21	9	8 0	A 4 2	8 G 12
12	e	18 22 20	14 2 23	16 1 43		9	8 8	A 9 0	10 G 16
13	f		3 23 2		3 18	A	9 8 3	A 8 9	11 G A
14	g	7 19 A		A 12 33		9	8 2	A 8 A	13 G 18
15	a	19 22 12	11 6 23	14 22 38	11 9	9 9	8 1	A 8 0	14 G 19
16	b		19 13 22		19 18	9	4 39	A 8 8	16 G 21
17	c	8 9 30		8 9 31	8 22 0	9	38	A 8 2	18 G 22
18	d		8 8 33	12 19 12			9 31	A 8 1	19 G 23
19	e	12 0 32	16 21 18		16 9	1	A 9 39	A 3 9	21 G 24
20	f	1 10 28		1 8 29			9 39	A 38	22 G 24
21	g		9 4 3		9 16	0	9 33	A 36	24 G 24
22	a	9 2 20	13 21 16	9 13 26			9 31	A 3 2	26 G 29
23	b	17 18 9 8			13 10	2	1 9 30	A 32	28 G 30
24	c	6 22 20	2 1 21	17 6 28	2 1	3	8 9 29	A 31	29 G 31
25	d		10 18 38	6 23 21	10 14	2	6 9 24	A 29	31 G 33
26	e	14 6 9	18 14 9 A	18 6 9 2	18 23	2	1 9 29	A 2 A	33 G 34
27	f			3 1 A 44			9 28	A 24	35 G 36
28	g	3 4 26			A 12	2	0 9 22	A 23	37 G 38
29	a		A 2 38	11 8 28			1 21	A 22	38 G 39
30	b	11 0 3	19 21 30		19 9	1	1 4 20	A 20	40 G 20
31	c	19 18 38		19 2 28			9 18	A 18	42 G 22

The letter "A" appearing in numerical columns likely serves as a symbol for 10 or 12, or as a specific astronomical marker. The letter "G" appears to represent the Golden Number or a degree marker (Gradus). The dominical letters (a-g) repeat every seven days to track days of the week.