May 2023 (Gregorian)

Twilight and Astronomy Information

Greenwich Observatory, UK: 51.4778°N, 0°E, elevation 46.9m, time zone UT (Standard Time)

Date	Start of Twilight			Sun Rise	Rise Az °	Mid Day	° Sun Long	EoT	Day Span	Day Hour	Set Az °	Sun Set	° Moon Phase	End of Twilight			Mid- Night	Night Span	Night Hour	Moon Rise	° Rise Phase	Moon Set	° Set Phase
	Astro	Sea	Civil											Civil	Sea	Astro
1 Mon	02:05	03:05	03:55	04:31	65.5	11:57	40.9	+2.9	14:53	1:14	294.9	19:24	133.3	20:01	20:51	21:52	23:57	09:05	0:45	14:27	131.0	03:26	125.8
2 Tue	02:01	03:03	03:52	04:29	64.9	11:57	41.8	+3.0	14:57	1:15	295.4	19:26	144.8	20:03	20:53	21:56	23:57	09:01	0:45	15:40	143.0	03:37	137.2
3 Wed	01:58	03:00	03:50	04:27	64.4	11:57	42.8	+3.1	15:00	1:15	295.9	19:28	156.6	20:05	20:55	21:59	23:57	08:58	0:45	16:55	155.3	03:48	148.9
4 Thu	01:54	02:58	03:48	04:25	63.9	11:57	43.8	+3.2	15:04	1:15	296.4	19:29	168.6	20:07	20:58	22:03	23:57	08:54	0:45	18:13	168.0	03:59	160.8
5 Fri	01:50	02:55	03:46	04:24	63.4	11:57	44.7	+3.3	15:07	1:16	296.9	19:31	181.0	20:08	21:00	22:06	23:57	08:51	0:44	19:35	181.1	04:13	173.1
6 Sat	01:46	02:53	03:44	04:22	63.0	11:57	45.7	+3.4	15:11	1:16	297.4	19:32	193.7	20:10	21:02	22:10	23:57	08:48	0:44	21:01	194.5	04:31	185.7
7 Sun	01:43	02:50	03:42	04:20	62.5	11:57	46.7	+3.4	15:14	1:16	297.8	19:34	206.6	20:12	21:04	22:14	23:57	08:44	0:44	22:26	208.2	04:55	198.7
8 Mon	01:39	02:48	03:40	04:18	62.0	11:57	47.6	+3.5	15:17	1:16	298.3	19:36	219.7	20:14	21:07	22:18	23:56	08:41	0:43	23:42	222.0	05:30	212.0
9 Tue	01:35	02:46	03:39	04:17	61.5	11:56	48.6	+3.5	15:21	1:17	298.8	19:37	233.0	20:16	21:09	22:22	23:56	08:38	0:43	never		06:22	225.6
10 Wed	01:31	02:43	03:37	04:15	61.1	11:56	49.6	+3.6	15:24	1:17	299.2	19:39	246.3	20:18	21:11	22:26	23:56	08:34	0:43	00:43	235.8	07:32	239.6
11 Thu	01:27	02:41	03:35	04:13	60.6	11:56	50.5	+3.6	15:27	1:17	299.7	19:40	259.6	20:19	21:14	22:30	23:56	08:31	0:43	01:25	249.5	08:55	253.6
12 Fri	01:22	02:38	03:33	04:12	60.2	11:56	51.5	+3.6	15:30	1:18	300.1	19:42	272.9	20:21	21:16	22:34	23:56	08:28	0:42	01:55	263.1	10:24	267.8
13 Sat	01:18	02:36	03:31	04:10	59.7	11:56	52.5	+3.6	15:33	1:18	300.6	19:44	286.1	20:23	21:18	22:39	23:56	08:25	0:42	02:16	276.5	11:52	281.8
14 Sun	01:13	02:34	03:29	04:09	59.3	11:56	53.4	+3.6	15:36	1:18	301.0	19:45	299.2	20:25	21:21	22:44	23:56	08:22	0:42	02:32	289.8	13:18	295.7
15 Mon	01:09	02:31	03:28	04:07	58.9	11:56	54.4	+3.6	15:40	1:18	301.4	19:47	312.1	20:26	21:23	22:49	23:56	08:19	0:42	02:46	303.0	14:41	309.4
16 Tue	01:04	02:29	03:26	04:06	58.4	11:56	55.4	+3.6	15:43	1:19	301.8	19:48	324.9	20:28	21:25	22:54	23:56	08:16	0:41	02:58	316.0	16:03	322.9
17 Wed	00:58	02:27	03:24	04:04	58.0	11:56	56.3	+3.6	15:45	1:19	302.2	19:50	337.5	20:30	21:28	23:00	23:56	08:13	0:41	03:11	328.8	17:24	336.2
18 Thu	00:53	02:25	03:23	04:03	57.6	11:56	57.3	+3.6	15:48	1:19	302.6	19:51	349.9	20:32	21:30	23:06	23:56	08:10	0:41	03:26	341.4	18:47	349.3
19 Fri	00:47	02:22	03:21	04:01	57.2	11:56	58.3	+3.5	15:51	1:19	303.0	19:53	2.0	20:33	21:32	23:12	23:57	08:07	0:41	03:43	353.9	20:08	2.1
20 Sat	00:40	02:20	03:19	04:00	56.8	11:57	59.2	+3.5	15:54	1:19	303.4	19:54	13.9	20:35	21:35	23:20	23:57	08:05	0:40	04:07	6.1	21:26	14.7
21 Sun	00:32	02:18	03:18	03:59	56.5	11:57	60.2	+3.4	15:57	1:20	303.8	19:55	25.6	20:37	21:37	23:30	23:57	08:02	0:40	04:38	18.2	22:34	26.8
22 Mon	00:23	02:16	03:16	03:57	56.1	11:57	61.2	+3.3	15:59	1:20	304.1	19:57	37.0	20:38	21:39	23:46	23:57	07:59	0:40	05:21	30.1	23:30	38.7
23 Tue	00:07	02:14	03:15	03:56	55.8	11:57	62.1	+3.3	16:02	1:20	304.5	19:58	48.2	20:40	21:41	never	23:57	07:57	0:40	06:17	41.9	never
24 Wed	never	02:12	03:13	03:55	55.4	11:57	63.1	+3.2	16:04	1:20	304.8	19:59	59.3	20:41	21:44	never	23:57	07:54	0:40	07:22	53.5	00:11	50.2
25 Thu	never	02:10	03:12	03:54	55.1	11:57	64.0	+3.1	16:07	1:21	305.2	20:01	70.3	20:43	21:46	never	23:57	07:52	0:39	08:33	65.0	00:41	61.4
26 Fri	never	02:08	03:11	03:53	54.7	11:57	65.0	+3.0	16:09	1:21	305.5	20:02	81.2	20:44	21:48	never	23:57	07:50	0:39	09:45	76.5	01:03	72.6
27 Sat	never	02:06	03:09	03:52	54.4	11:57	66.0	+2.9	16:12	1:21	305.8	20:03	92.1	20:46	21:50	never	23:57	07:47	0:39	10:57	88.0	01:19	83.6
28 Sun	never	02:04	03:08	03:51	54.1	11:57	66.9	+2.7	16:14	1:21	306.1	20:05	103.2	20:47	21:52	never	23:57	07:45	0:39	12:09	99.5	01:32	94.7
29 Mon	never	02:02	03:07	03:50	53.8	11:57	67.9	+2.6	16:16	1:21	306.4	20:06	114.5	20:49	21:54	never	23:57	07:43	0:39	13:20	111.3	01:44	105.9
30 Tue	never	02:00	03:06	03:49	53.5	11:58	68.8	+2.5	16:18	1:22	306.6	20:07	126.0	20:50	21:56	never	23:58	07:41	0:38	14:33	123.3	01:54	117.3
31 Wed	never	01:59	03:05	03:48	53.3	11:58	69.8	+2.3	16:20	1:22	306.9	20:08	137.9	20:52	21:58	never	23:58	07:39	0:38	15:49	135.8	02:06	129.0

° Solar Longitude [Sun Long] and Equation of Time [EoT, in minutes] are as of Mid Day = Local Apparent Noon.
° Sunrise/Sunset Azimuth [Rise/Set Az] measured clockwise from true north with center of Sun at horizon (east = 90°, west = 270°). Moon Phase at Sunset.

Note Twilight Solar Depressions: Civil = 6° (see brightest stars, aviation end or start of night, then artificial lights for outdoor activities),
Nautical [Sea] = 12° (horizon no longer visible at sea), Astronomical [Astro] = 18° (minimal atmospheric scatter of sunlight).

Generated by Kalendis 11.161(1691)-Tu <http://individual.utoronto.ca/kalendis/>