Astronomical Almanac

April 1980

Month Year

Day	Sunrise/Sunset		Day Length		Astronomical Twilight		Nautical Twilight		Civil Twilight		Solar Noon
Day	Sunrise	Sunset	Length	Diff.	Start	End	Start	End	Start	End	Time	Mil. mi.
1 +	5:48 AM	6:38 PM	12:49:55	+3:23	4:00 AM	8:28 PM	4:39 AM	7:48 PM	5:16 AM	7:11 PM	12:15 PM (47.5°)	92.92

2 +	5:46 AM	6:40 PM	12:53:18	+3:23	3:58 AM	8:29 PM	4:37 AM	7:50 PM	5:14 AM	7:12 PM	12:15 PM (47.9°)	92.95

3 +	5:45 AM	6:41 PM	12:56:40	+3:22	3:55 AM	8:31 PM	4:35 AM	7:51 PM	5:12 AM	7:14 PM	12:15 PM (48.3°)	92.97

4 +	5:43 AM	6:43 PM	13:00:03	+3:23	3:53 AM	8:33 PM	4:32 AM	7:53 PM	5:10 AM	7:15 PM	12:15 PM (48.7°)	93.0

5 +	5:41 AM	6:44 PM	13:03:24	+3:21	3:50 AM	8:35 PM	4:30 AM	7:55 PM	5:08 AM	7:17 PM	12:15 PM (49.1°)	93.03

6 +	5:39 AM	6:45 PM	13:06:45	+3:21	3:48 AM	8:37 PM	4:28 AM	7:56 PM	5:06 AM	7:18 PM	12:10 PM (49.5°)	93.05

7 +	5:37 AM	6:47 PM	13:10:06	+3:21	3:45 AM	8:39 PM	4:26 AM	7:58 PM	5:04 AM	7:20 PM	12:10 PM (49.8°)	93.08

8 +	5:35 AM	6:48 PM	13:13:26	+3:20	3:43 AM	8:40 PM	4:24 AM	8:00 PM	5:02 AM	7:21 PM	12:10 PM (50.2°)	93.11

9 +	5:33 AM	6:50 PM	13:16:46	+3:20	3:41 AM	8:42 PM	4:21 AM	8:01 PM	5:00 AM	7:23 PM	12:10 PM (50.6°)	93.14

10 +	5:31 AM	6:51 PM	13:20:05	+3:19	3:38 AM	8:44 PM	4:19 AM	8:03 PM	4:58 AM	7:24 PM	12:10 PM (51.0°)	93.16

11 +	5:29 AM	6:52 PM	13:23:24	+3:19	3:36 AM	8:46 PM	4:17 AM	8:05 PM	4:56 AM	7:26 PM	12:10 PM (51.3°)	93.19

12 +	5:27 AM	6:54 PM	13:26:42	+3:18	3:33 AM	8:48 PM	4:15 AM	8:06 PM	4:54 AM	7:27 PM	12:10 PM (51.7°)	93.22

13 +	5:25 AM	6:55 PM	13:29:59	+3:17	3:31 AM	8:50 PM	4:13 AM	8:08 PM	4:52 AM	7:29 PM	12:10 PM (52.1°)	93.24

14 +	5:23 AM	6:57 PM	13:33:16	+3:17	3:28 AM	8:52 PM	4:11 AM	8:10 PM	4:50 AM	7:30 PM	12:10 PM (52.4°)	93.27

15 +	5:21 AM	6:58 PM	13:36:32	+3:16	3:26 AM	8:54 PM	4:08 AM	8:11 PM	4:48 AM	7:32 PM	12:10 PM (52.8°)	93.3

16 +	5:20 AM	6:59 PM	13:39:47	+3:15	3:23 AM	8:56 PM	4:06 AM	8:13 PM	4:46 AM	7:33 PM	12:10 PM (53.1°)	93.32

17 +	5:18 AM	7:01 PM	13:43:01	+3:14	3:21 AM	8:58 PM	4:04 AM	8:15 PM	4:44 AM	7:35 PM	12:10 PM (53.5°)	93.35

18 +	5:16 AM	7:02 PM	13:46:14	+3:13	3:18 AM	9:00 PM	4:02 AM	8:16 PM	4:42 AM	7:36 PM	12:10 PM (53.8°)	93.37

19 +	5:14 AM	7:03 PM	13:49:27	+3:13	3:16 AM	9:03 PM	4:00 AM	8:18 PM	4:40 AM	7:38 PM	12:10 PM (54.2°)	93.4

20 +	5:12 AM	7:05 PM	13:52:38	+3:11	3:13 AM	9:05 PM	3:58 AM	8:20 PM	4:38 AM	7:39 PM	12:10 PM (54.5°)	93.42

21 +	5:10 AM	7:06 PM	13:55:49	+3:11	3:11 AM	9:07 PM	3:56 AM	8:22 PM	4:36 AM	7:41 PM	12:10 PM (54.9°)	93.45

22 +	5:09 AM	7:08 PM	13:58:58	+3:09	3:08 AM	9:09 PM	3:53 AM	8:23 PM	4:34 AM	7:42 PM	12:10 PM (55.2°)	93.47

23 +	5:07 AM	7:09 PM	14:02:06	+3:08	3:06 AM	9:11 PM	3:51 AM	8:25 PM	4:32 AM	7:44 PM	12:10 PM (55.5°)	93.5

24 +	5:05 AM	7:10 PM	14:05:14	+3:08	3:03 AM	9:13 PM	3:49 AM	8:27 PM	4:30 AM	7:45 PM	12:10 PM (55.9°)	93.52

25 +	5:03 AM	7:12 PM	14:08:20	+3:06	3:01 AM	9:16 PM	3:47 AM	8:29 PM	4:29 AM	7:47 PM	12:10 PM (56.2°)	93.54

26 +	5:02 AM	7:13 PM	14:11:24	+3:04	2:58 AM	9:18 PM	3:45 AM	8:30 PM	4:27 AM	7:48 PM	12:10 PM (56.5°)	93.57

27 +	6:00 AM	8:15 PM	14:14:28	+3:04	3:56 AM	10:20 PM	4:43 AM	9:32 PM	5:25 AM	8:50 PM	1:08 PM (55.1°)	93.59

28 +	5:58 AM	8:16 PM	14:17:30	+3:02	3:53 AM	10:22 PM	4:41 AM	9:34 PM	5:23 AM	8:51 PM	1:05 PM (57.1°)	93.62

29 +	5:57 AM	8:17 PM	14:20:30	+3:00	3:50 AM	10:25 PM	4:39 AM	9:36 PM	5:21 AM	8:53 PM	1:05 PM (57.4°)	93.64

30 +	5:55 AM	8:19 PM	14:23:29	+2:59	3:48 AM	10:27 PM	4:37 AM	9:38 PM	5:19 AM	8:55 PM	1:05 PM (57.7°)	93.66

Day	Moonrise/Moonset			Meridian Passing
Day	Moonrise	Moonset	Moonrise	Time	Thou. mi.	Illumination
1 +	-	6:42 AM	7:48 PM	12:45 AM (37.6°)	248.31	98%

2 +	-	7:08 AM	8:49 PM	1:30 AM (34.4°)	247.2	94%

3 +	-	7:36 AM	9:50 PM	2:15 AM (31.1°)	245.7	88%

4 +	-	8:09 AM	10:50 PM	3:00 AM (28.1°)	243.79	81%

5 +	-	8:46 AM	11:49 PM	3:50 AM (24.8°)	241.47	72%

6 +	-	9:29 AM	-	4:40 AM (23.5°)	238.75	62%

7 +	12:46 AM	10:19 AM	-	5:35 AM (23.0°)	235.7	51%

8 +	1:38 AM	11:17 AM	-	6:30 AM (23.6°)	232.42	40%

9 +	2:25 AM	12:22 PM	-	7:25 AM (25.3°)	229.08	30%

10 +	3:08 AM	1:33 PM	-	8:20 AM (28.2°)	225.91	21%

11 +	3:46 AM	2:47 PM	-	9:15 AM (32.0°)	223.17	13%

12 +	4:21 AM	4:05 PM	-	10:10 AM (36.7°)	221.14	7%

13 +	4:53 AM	5:24 PM	-	11:05 AM (41.8°)	220.06	2%

14 +	5:26 AM	6:43 PM	-	12:00 PM (47.0°)	220.08	0%

15 +	5:59 AM	8:01 PM	-	12:55 PM (50.1°)	221.25	0%

16 +	6:35 AM	9:17 PM	-	1:55 PM (54.4°)	223.47	3%

17 +	7:14 AM	10:29 PM	-	2:50 PM (57.7°)	226.52	7%

18 +	7:58 AM	11:34 PM	-	3:45 PM (59.9°)	230.1	13%

19 +	8:47 AM	-	-	4:40 PM (61.0°)	233.92	21%

20 +	-	12:31 AM	9:41 AM	5:30 PM (61.0°)	237.66	31%

21 +	-	1:19 AM	10:38 AM	6:20 PM (59.9°)	241.07	41%

22 +	-	2:00 AM	11:38 AM	7:10 PM (58.0°)	243.98	52%

23 +	-	2:35 AM	12:38 PM	7:55 PM (53.4°)	246.26	62%

24 +	-	3:05 AM	1:39 PM	8:40 PM (50.9°)	247.86	72%

25 +	-	3:32 AM	2:39 PM	9:20 PM (47.7°)	248.79	81%

26 +	-	3:57 AM	3:39 PM	10:05 PM (44.0°)	249.08	89%

27 +	-	5:22 AM	5:39 PM	11:45 PM (39.8°)	248.83	94%

28 +	-	5:46 AM	6:40 PM	12:00 AM (39.8°)	248.1	98%

29 +	-	6:11 AM	7:41 PM	12:25 AM (35.7°)	246.98	100%

30 +	-	6:39 AM	8:43 PM	1:10 AM (32.2°)	245.54	99%