www.pierpaoloricci.it/dati/giorno solare vero

LA DURATA DEL GIORNO SOLARE VERO

Il giorno solare vero è definito come il tempo intercorrente tra due passaggi consecutivi del centro del Sole al meridiano di un dato posto. Questo intervallo non è costante ma varia tra 23h59m39s e 24h0m30s, per lo meno con gli attuali valori di obliquità dell'eclittica, eccentricità orbitale della Terra e longitudine del perigeo del Sole. La causa di questa variabilità è la velocità non costante del Sole lungo l'eclittica. La durata del giorno solare vero è 24 ore non quando l'equazione del tempo è nulla, ma quando lo è la sua variazione.

Giorno Passaggio Durata 01-gen-09 12:13:39 02-gen-09 12:14:07 1,000324 03-gen-09 12:14:35 1,000324 04-gen-09 12:15:02 1,000313 05-gen-09 12:15:29 1,000313 06-gen-09 12:15:55 1,000301 07-gen-09 12:16:21 1,000301 08-gen-09 12:16:47 1,000301 09-gen-09 12:17:12 1,000289 10-gen-09 12:17:36 1,000278 11-gen-09 12:18:00 1,000278 12-gen-09 12:18:23 1,000266 13-gen-09 12:18:45 1,000255 14-gen-09 12:19:07 1,000255 15-gen-09 12:19:28 1,000243 16-gen-09 12:19:49 1,000243 17-gen-09 12:20:09 1,000231 18-gen-09 12:20:28 1,000220 19-gen-09 12:20:46 1,000208 20-gen-09 12:21:04 1,000208 21-gen-09 12:21:21 1,000197 22-gen-09 12:21:38 1,000197 23-gen-09 12:21:53 1,000174 24-gen-09 12:22:08 1,000174 25-gen-09 12:22:22 1,000162 26-gen-09 12:22:35 1,000150 27-gen-09 12:22:47 1,000139 28-gen-09 12:22:59 1,000139 29-gen-09 12:23:10 1,000127 30-gen-09 12:23:19 1,000104 31-gen-09 12:23:28 1,000104 01-feb-09 12:23:37 1,000104 02-feb-09 12:23:44 1,000081 03-feb-09 12:23:51 1,000081 04-feb-09 12:23:56 1,000058 05-feb-09 12:24:01 1,000058 06-feb-09 12:24:05 1,000046 07-feb-09 12:24:09 1,000046 08-feb-09 12:24:11 1,000023 09-feb-09 12:24:13 1,000023 10-feb-09 12:24:14 1,000012 11-feb-09 12:24:14 1,000000 12-feb-09 12:24:13 0,999988 13-feb-09 12:24:12 0,999988 14-feb-09 12:24:10 0,999977 15-feb-09 12:24:07 0,999965 16-feb-09 12:24:03 0,999954 17-feb-09 12:23:59 0,999954 18-feb-09 12:23:54 0,999942 19-feb-09 12:23:49 0,999942 20-feb-09 12:23:42 0,999919 21-feb-09 12:23:35 0,999919 22-feb-09 12:23:28 0,999919 23-feb-09 12:23:20 0,999907 24-feb-09 12:23:11 0,999896 25-feb-09 12:23:02 0,999896 26-feb-09 12:22:52 0,999884 27-feb-09 12:22:42 0,999884 28-feb-09 12:22:31 0,999873 01-mar-09 12:22:19 0,999861 02-mar-09 12:22:07 0,999861 03-mar-09 12:21:55 0,999861 04-mar-09 12:21:42 0,999850 05-mar-09 12:21:28 0,999838 06-mar-09 12:21:14 0,999838 07-mar-09 12:21:00 0,999838 08-mar-09 12:20:45 0,999826 09-mar-09 12:20:30 0,999826 10-mar-09 12:20:15 0,999826 11-mar-09 12:19:59 0,999815 12-mar-09 12:19:43 0,999815 13-mar-09 12:19:27 0,999815 14-mar-09 12:19:10 0,999803 15-mar-09 12:18:53 0,999803 16-mar-09 12:18:36 0,999803 17-mar-09 12:18:19 0,999803 18-mar-09 12:18:02 0,999803 19-mar-09 12:17:44 0,999792 20-mar-09 12:17:26 0,999792 21-mar-09 12:17:08 0,999792 22-mar-09 12:16:51 0,999803 23-mar-09 12:16:33 0,999792 24-mar-09 12:16:15 0,999792 25-mar-09 12:15:57 0,999792 26-mar-09 12:15:38 0,999780 27-mar-09 12:15:20 0,999792 28-mar-09 12:15:02 0,999792 29-mar-09 12:14:44 0,999792 30-mar-09 12:14:26 0,999792 31-mar-09 12:14:08 0,999792 01-apr-09 12:13:51 0,999803 02-apr-09 12:13:33 0,999792 03-apr-09 12:13:15 0,999792 04-apr-09 12:12:58 0,999803 05-apr-09 12:12:40 0,999792 06-apr-09 12:12:23 0,999803 07-apr-09 12:12:06 0,999803 08-apr-09 12:11:50 0,999815 09-apr-09 12:11:33 0,999803 10-apr-09 12:11:17 0,999815 11-apr-09 12:11:01 0,999815 12-apr-09 12:10:45 0,999815 13-apr-09 12:10:30 0,999826 14-apr-09 12:10:15 0,999826 15-apr-09 12:10:00 0,999826 16-apr-09 12:09:46 0,999838 17-apr-09 12:09:32 0,999838 18-apr-09 12:09:19 0,999850 19-apr-09 12:09:05 0,999838 20-apr-09 12:08:53 0,999861 21-apr-09 12:08:41 0,999861 22-apr-09 12:08:29 0,999861 23-apr-09 12:08:18 0,999873 24-apr-09 12:08:07 0,999873 25-apr-09 12:07:57 0,999884 26-apr-09 12:07:47 0,999884 27-apr-09 12:07:37 0,999884 28-apr-09 12:07:29 0,999907 29-apr-09 12:07:20 0,999896 30-apr-09 12:07:12 0,999907 01-mag-09 12:07:05 0,999919 02-mag-09 12:06:58 0,999919 03-mag-09 12:06:52 0,999931 04-mag-09 12:06:46 0,999931 05-mag-09 12:06:41 0,999942 06-mag-09 12:06:36 0,999942 07-mag-09 12:06:32 0,999954 08-mag-09 12:06:29 0,999965 09-mag-09 12:06:26 0,999965 10-mag-09 12:06:23 0,999965 11-mag-09 12:06:21 0,999977 12-mag-09 12:06:20 0,999988 13-mag-09 12:06:20 1,000000 14-mag-09 12:06:19 0,999988 15-mag-09 12:06:20 1,000012 16-mag-09 12:06:21 1,000012 17-mag-09 12:06:23 1,000023 18-mag-09 12:06:25 1,000023 19-mag-09 12:06:28 1,000035 20-mag-09 12:06:31 1,000035 21-mag-09 12:06:35 1,000046 22-mag-09 12:06:40 1,000058 23-mag-09 12:06:45 1,000058 24-mag-09 12:06:50 1,000058 25-mag-09 12:06:56 1,000069 26-mag-09 12:07:03 1,000081 27-mag-09 12:07:10 1,000081 28-mag-09 12:07:17 1,000081 29-mag-09 12:07:25 1,000093 30-mag-09 12:07:33 1,000093 31-mag-09 12:07:42 1,000104 01-giu-09 12:07:51 1,000104 02-giu-09 12:08:00 1,000104 03-giu-09 12:08:10 1,000116 04-giu-09 12:08:20 1,000116 05-giu-09 12:08:31 1,000127 06-giu-09 12:08:41 1,000116 07-giu-09 12:08:53 1,000139 08-giu-09 12:09:04 1,000127 09-giu-09 12:09:16 1,000139 10-giu-09 12:09:27 1,000127 11-giu-09 12:09:39 1,000139 12-giu-09 12:09:52 1,000150 13-giu-09 12:10:04 1,000139 14-giu-09 12:10:17 1,000150 15-giu-09 12:10:30 1,000150 16-giu-09 12:10:43 1,000150 17-giu-09 12:10:56 1,000150 18-giu-09 12:11:09 1,000150 19-giu-09 12:11:22 1,000150 20-giu-09 12:11:35 1,000150 21-giu-09 12:11:48 1,000150 22-giu-09 12:12:01 1,000150 23-giu-09 12:12:14 1,000150 24-giu-09 12:12:27 1,000150 25-giu-09 12:12:40 1,000150 26-giu-09 12:12:53 1,000150 27-giu-09 12:13:05 1,000139 28-giu-09 12:13:18 1,000150 29-giu-09 12:13:30 1,000139 30-giu-09 12:13:42 1,000139 01-lug-09 12:13:53 1,000127 02-lug-09 12:14:05 1,000139 03-lug-09 12:14:16 1,000127 04-lug-09 12:14:27 1,000127 05-lug-09 12:14:37 1,000116 06-lug-09 12:14:47 1,000116 07-lug-09 12:14:57 1,000116 08-lug-09 12:15:06 1,000104 09-lug-09 12:15:15 1,000104 10-lug-09 12:15:23 1,000093 11-lug-09 12:15:31 1,000093 12-lug-09 12:15:39 1,000093 13-lug-09 12:15:46 1,000081 14-lug-09 12:15:53 1,000081 15-lug-09 12:15:59 1,000069 16-lug-09 12:16:05 1,000069 17-lug-09 12:16:10 1,000058 18-lug-09 12:16:15 1,000058 19-lug-09 12:16:19 1,000046 20-lug-09 12:16:22 1,000035 21-lug-09 12:16:25 1,000035 22-lug-09 12:16:28 1,000035 23-lug-09 12:16:30 1,000023 24-lug-09 12:16:31 1,000012 25-lug-09 12:16:32 1,000012 26-lug-09 12:16:32 1,000000 27-lug-09 12:16:32 1,000000 28-lug-09 12:16:31 0,999988 29-lug-09 12:16:29 0,999977 30-lug-09 12:16:26 0,999965 31-lug-09 12:16:24 0,999977 01-ago-09 12:16:20 0,999954 02-ago-09 12:16:16 0,999954 03-ago-09 12:16:11 0,999942 04-ago-09 12:16:05 0,999931 05-ago-09 12:15:59 0,999931 06-ago-09 12:15:53 0,999931 07-ago-09 12:15:45 0,999907 08-ago-09 12:15:38 0,999919 09-ago-09 12:15:29 0,999896 10-ago-09 12:15:20 0,999896 11-ago-09 12:15:11 0,999896 12-ago-09 12:15:01 0,999884 13-ago-09 12:14:50 0,999873 14-ago-09 12:14:39 0,999873 15-ago-09 12:14:27 0,999861 16-ago-09 12:14:15 0,999861 17-ago-09 12:14:02 0,999850 18-ago-09 12:13:49 0,999850 19-ago-09 12:13:36 0,999850 20-ago-09 12:13:21 0,999826 21-ago-09 12:13:07 0,999838 22-ago-09 12:12:52 0,999826 23-ago-09 12:12:36 0,999815 24-ago-09 12:12:20 0,999815 25-ago-09 12:12:04 0,999815 26-ago-09 12:11:47 0,999803 27-ago-09 12:11:30 0,999803 28-ago-09 12:11:12 0,999792 29-ago-09 12:10:54 0,999792 30-ago-09 12:10:36 0,999792 31-ago-09 12:10:17 0,999780 01-set-09 12:09:58 0,999780 02-set-09 12:09:39 0,999780 03-set-09 12:09:19 0,999769 04-set-09 12:08:59 0,999769 05-set-09 12:08:39 0,999769 06-set-09 12:08:19 0,999769 07-set-09 12:07:59 0,999769 08-set-09 12:07:38 0,999757 09-set-09 12:07:17 0,999757 10-set-09 12:06:56 0,999757 11-set-09 12:06:35 0,999757 12-set-09 12:06:14 0,999757 13-set-09 12:05:53 0,999757 14-set-09 12:05:31 0,999745 15-set-09 12:05:10 0,999757 16-set-09 12:04:49 0,999757 17-set-09 12:04:27 0,999745 18-set-09 12:04:06 0,999757 19-set-09 12:03:45 0,999757 20-set-09 12:03:23 0,999745 21-set-09 12:03:02 0,999757 22-set-09 12:02:41 0,999757 23-set-09 12:02:20 0,999757 24-set-09 12:01:59 0,999757 25-set-09 12:01:38 0,999757 26-set-09 12:01:18 0,999769 27-set-09 12:00:57 0,999757 28-set-09 12:00:37 0,999769 29-set-09 12:00:17 0,999769 30-set-09 11:59:58 0,999780 01-ott-09 11:59:38 0,999769 02-ott-09 11:59:19 0,999780 03-ott-09 11:59:00 0,999780 04-ott-09 11:58:41 0,999780 05-ott-09 11:58:23 0,999792 06-ott-09 11:58:05 0,999792 07-ott-09 11:57:48 0,999803 08-ott-09 11:57:31 0,999803 09-ott-09 11:57:14 0,999803 10-ott-09 11:56:58 0,999815 11-ott-09 11:56:43 0,999826 12-ott-09 11:56:28 0,999826 13-ott-09 11:56:13 0,999826 14-ott-09 11:55:59 0,999838 15-ott-09 11:55:46 0,999850 16-ott-09 11:55:33 0,999850 17-ott-09 11:55:20 0,999850 18-ott-09 11:55:09 0,999873 19-ott-09 11:54:58 0,999873 20-ott-09 11:54:47 0,999873 21-ott-09 11:54:37 0,999884 22-ott-09 11:54:28 0,999896 23-ott-09 11:54:20 0,999907 24-ott-09 11:54:12 0,999907 25-ott-09 11:54:05 0,999919 26-ott-09 11:53:59 0,999931 27-ott-09 11:53:53 0,999931 28-ott-09 11:53:48 0,999942 29-ott-09 11:53:44 0,999954 30-ott-09 11:53:40 0,999954 31-ott-09 11:53:38 0,999977 01-nov-09 11:53:36 0,999977 02-nov-09 11:53:35 0,999988 03-nov-09 11:53:34 0,999988 04-nov-09 11:53:35 1,000012 05-nov-09 11:53:36 1,000012 06-nov-09 11:53:38 1,000023 07-nov-09 11:53:41 1,000035 08-nov-09 11:53:45 1,000046 09-nov-09 11:53:50 1,000058 10-nov-09 11:53:56 1,000069 11-nov-09 11:54:02 1,000069 12-nov-09 11:54:10 1,000093 13-nov-09 11:54:18 1,000093 14-nov-09 11:54:27 1,000104 15-nov-09 11:54:37 1,000116 16-nov-09 11:54:48 1,000127 17-nov-09 11:55:00 1,000139 18-nov-09 11:55:12 1,000139 19-nov-09 11:55:25 1,000150 20-nov-09 11:55:39 1,000162 21-nov-09 11:55:54 1,000174 22-nov-09 11:56:10 1,000185 23-nov-09 11:56:27 1,000197 24-nov-09 11:56:44 1,000197 25-nov-09 11:57:02 1,000208 26-nov-09 11:57:20 1,000208 27-nov-09 11:57:40 1,000231 28-nov-09 11:58:00 1,000231 29-nov-09 11:58:21 1,000243 30-nov-09 11:58:42 1,000243 01-dic-09 11:59:04 1,000255 02-dic-09 11:59:27 1,000266 03-dic-09 11:59:51 1,000278 04-dic-09 12:00:15 1,000278 05-dic-09 12:00:39 1,000278 06-dic-09 12:01:04 1,000289 07-dic-09 12:01:30 1,000301 08-dic-09 12:01:56 1,000301 09-dic-09 12:02:23 1,000313 10-dic-09 12:02:50 1,000313 11-dic-09 12:03:17 1,000313 12-dic-09 12:03:45 1,000324 13-dic-09 12:04:14 1,000336 14-dic-09 12:04:42 1,000324 15-dic-09 12:05:11 1,000336 16-dic-09 12:05:40 1,000336 17-dic-09 12:06:10 1,000347 18-dic-09 12:06:39 1,000336 19-dic-09 12:07:09 1,000347 20-dic-09 12:07:39 1,000347 21-dic-09 12:08:09 1,000347 22-dic-09 12:08:39 1,000347 23-dic-09 12:09:08 1,000336 24-dic-09 12:09:38 1,000347 25-dic-09 12:10:08 1,000347 26-dic-09 12:10:38 1,000347 27-dic-09 12:11:07 1,000336 28-dic-09 12:11:36 1,000336 29-dic-09 12:12:06 1,000347 30-dic-09 12:12:34 1,000324 31-dic-09 12:13:03 1,000336 Il grafico mostra la durata del giorno solare vero nel corso del 2009