February 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 Wed	05:43	06:22	07:02	07:37	118.3	12:14	312.4	-13.5	09:14	0:46	241.9	16:51	135.8	17:25	18:05	18:44	00:14	14:45	1:14	12:18	133.7	05:18	130.5
2 Thu	05:42	06:21	07:01	07:36	117.8	12:14	313.4	-13.7	09:17	0:46	242.4	16:52	146.7	17:27	18:07	18:46	00:14	14:41	1:13	13:06	145.0	06:16	141.9
3 Fri	05:41	06:20	07:00	07:34	117.2	12:14	314.4	-13.8	09:20	0:47	242.9	16:54	157.6	17:29	18:09	18:48	00:14	14:38	1:13	14:05	156.3	07:02	153.1
4 Sat	05:39	06:18	06:58	07:32	116.7	12:14	315.4	-13.9	09:24	0:47	243.5	16:56	168.4	17:30	18:10	18:49	00:14	14:35	1:13	15:12	167.6	07:37	164.2
5 Sun	05:38	06:17	06:57	07:31	116.2	12:14	316.4	-14.0	09:27	0:47	244.0	16:58	179.3	17:32	18:12	18:51	00:14	14:31	1:13	16:23	179.0	08:03	175.3
6 Mon	05:37	06:15	06:55	07:29	115.7	12:14	317.4	-14.1	09:31	0:48	244.5	17:00	190.3	17:34	18:13	18:52	00:14	14:28	1:12	17:35	190.5	08:22	186.3
7 Tue	05:35	06:14	06:54	07:27	115.2	12:14	318.4	-14.1	09:34	0:48	245.0	17:02	201.3	17:35	18:15	18:54	00:14	14:24	1:12	18:47	202.1	08:37	197.4
8 Wed	05:34	06:12	06:52	07:26	114.6	12:14	319.5	-14.2	09:38	0:48	245.6	17:03	212.4	17:37	18:17	18:55	00:14	14:21	1:12	19:59	213.7	08:50	208.5
9 Thu	05:32	06:11	06:50	07:24	114.1	12:14	320.5	-14.2	09:41	0:48	246.1	17:05	223.6	17:39	18:18	18:57	00:14	14:17	1:11	21:10	225.5	09:01	219.8
10 Fri	05:31	06:09	06:49	07:22	113.5	12:14	321.5	-14.2	09:45	0:49	246.7	17:07	235.0	17:41	18:20	18:59	00:14	14:13	1:11	22:23	237.5	09:12	231.2
11 Sat	05:29	06:08	06:47	07:20	113.0	12:14	322.5	-14.2	09:49	0:49	247.2	17:09	246.5	17:42	18:22	19:00	00:14	14:10	1:11	23:39	249.7	09:24	242.8
12 Sun	05:27	06:06	06:45	07:19	112.4	12:14	323.5	-14.2	09:52	0:49	247.8	17:11	258.4	17:44	18:23	19:02	00:14	14:06	1:10	never		09:38	254.7
13 Mon	05:26	06:04	06:43	07:17	111.9	12:14	324.5	-14.2	09:56	0:50	248.4	17:13	270.6	17:46	18:25	19:04	00:14	14:02	1:10	00:58	262.3	09:56	266.9
14 Tue	05:24	06:03	06:42	07:15	111.3	12:14	325.5	-14.2	10:00	0:50	248.9	17:14	283.2	17:47	18:27	19:05	00:14	13:59	1:10	02:21	275.4	10:20	279.5
15 Wed	05:22	06:01	06:40	07:13	110.7	12:14	326.5	-14.1	10:03	0:50	249.5	17:16	296.2	17:49	18:28	19:07	00:14	13:55	1:10	03:44	288.9	10:55	292.8
16 Thu	05:21	05:59	06:38	07:11	110.2	12:14	327.5	-14.1	10:07	0:51	250.1	17:18	309.7	17:51	18:30	19:09	00:14	13:51	1:09	05:01	302.8	11:47	306.6
17 Fri	05:19	05:57	06:36	07:09	109.6	12:14	328.6	-14.0	10:11	0:51	250.7	17:20	323.5	17:53	18:32	19:10	00:14	13:47	1:09	06:04	317.0	13:00	321.0
18 Sat	05:17	05:56	06:34	07:07	109.0	12:14	329.6	-13.9	10:15	0:51	251.3	17:22	337.7	17:54	18:33	19:12	00:14	13:43	1:09	06:49	331.4	14:28	336.0
19 Sun	05:15	05:54	06:32	07:05	108.4	12:14	330.6	-13.8	10:18	0:52	251.8	17:23	351.9	17:56	18:35	19:14	00:14	13:40	1:08	07:20	345.9	16:03	351.1
20 Mon	05:13	05:52	06:31	07:03	107.8	12:14	331.6	-13.7	10:22	0:52	252.4	17:25	6.1	17:58	18:37	19:15	00:14	13:36	1:08	07:43	0.4	17:37	6.2
21 Tue	05:11	05:50	06:29	07:01	107.2	12:14	332.6	-13.6	10:26	0:52	253.0	17:27	20.0	18:00	18:38	19:17	00:14	13:32	1:08	08:00	14.6	19:07	21.0
22 Wed	05:09	05:48	06:27	06:59	106.6	12:14	333.6	-13.5	10:30	0:52	253.6	17:29	33.5	18:01	18:40	19:19	00:13	13:28	1:07	08:14	28.4	20:34	35.3
23 Thu	05:07	05:46	06:25	06:57	106.0	12:13	334.6	-13.4	10:34	0:53	254.2	17:31	46.6	18:03	18:42	19:20	00:13	13:24	1:07	08:28	41.8	21:58	49.0
24 Fri	05:05	05:44	06:23	06:55	105.4	12:13	335.6	-13.2	10:37	0:53	254.8	17:32	59.2	18:05	18:43	19:22	00:13	13:20	1:07	08:41	54.7	23:20	62.2
25 Sat	05:03	05:42	06:21	06:53	104.8	12:13	336.6	-13.1	10:41	0:53	255.5	17:34	71.4	18:06	18:45	19:24	00:13	13:17	1:06	08:57	67.1	never
26 Sun	05:01	05:40	06:19	06:51	104.2	12:13	337.6	-12.9	10:45	0:54	256.1	17:36	83.1	18:08	18:47	19:26	00:13	13:13	1:06	09:16	79.1	00:40	74.9
27 Mon	04:59	05:38	06:17	06:49	103.6	12:13	338.6	-12.7	10:49	0:54	256.7	17:38	94.5	18:10	18:49	19:27	00:13	13:09	1:06	09:41	90.8	01:57	87.1
28 Tue	04:57	05:36	06:14	06:47	103.0	12:13	339.6	-12.6	10:53	0:54	257.3	17:39	105.6	18:12	18:50	19:29	00:12	13:05	1:05	10:14	102.2	03:09	98.9

° 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/>