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From: | Frank Scherie |
Subject: | phases-of-moon did not include fix for change of julian/gregorian calendar for dates < 15-OCT-1582 |
Date: | Mon, 23 Jul 2007 11:45:29 +0200 |
User-agent: | Thunderbird 2.0.0.5 (Windows/20070716) |
Hello, trying to figure out lunar phase for 26-APR-1336 gives in emacs using -------------------------------------- C-u M-x phase-o-moon Year: 1336 Month: April Thursday, March 22, 1336: New Moon 1:37am (CET) Wednesday, March 28, 1336: First Quarter Moon 8:55pm (CEST) Thursday, April 5, 1336: Full Moon 2:54am (CEST) Friday, April 13, 1336: Last Quarter Moon 5:34am (CEST) Friday, April 20, 1336: New Moon 12:48pm (CEST) Friday, April 27, 1336: First Quarter Moon 3:28am (CEST) Friday, May 4, 1336: Full Moon 5:39pm (CEST) Saturday, May 12, 1336: Last Quarter Moon 9:22pm (CEST) Saturday, May 19, 1336: New Moon 8:44pm (CEST) Saturday, May 26, 1336: First Quarter Moon 11:26am (CEST) -------------------------------------- while NASA 6000 Year lunar phase table gives for 1301-1400 -------------------------------------- Year New Moon First Quarter Full Moon Last Quarter ΔT
1336 Jan 6 15:37 00h07m
Jan 14 19:52 Jan 22 04:59 Jan 28 22:06 Feb 5 12:21
Feb 13 11:35 Feb 20 12:29 Feb 27 10:56 Mar 6 08:49
Mar 14 00:31 H Mar 20 18:50 Mar 28 00:54 n Apr 5 03:24
Apr 12 10:42 Apr 19 01:23 Apr 26 15:39 May 4 19:12
May 11 18:39 May 18 09:22 May 26 06:43 Jun 3 07:52
Jun 10 01:20 Jun 16 19:41 Jun 24 21:42 Jul 2 17:34
Jul 9 07:59 Jul 16 08:49 Jul 24 12:20 Aug 1 00:54
Aug 7 15:51 Aug 15 00:48 Aug 23 02:24 Aug 30 06:53
Sep 6 01:57 H Sep 13 19:13 Sep 21 15:36 n Sep 28 12:50
Oct 5 14:54 Oct 13 15:12 Oct 21 03:47 Oct 27 20:09
Nov 4 06:44 Nov 12 11:17 Nov 19 15:04 Nov 26 06:02
Dec 4 00:54 Dec 12 05:39 Dec 19 01:47 Dec 25 19:01
----------------------------------------Looks like "phases-of-moon" does not calculate julian/gregorian calendar switch - i.e. when date is earlier then 15 Oktober 1582 which is first date of gregorian calendar. emacs ---------------------------------------- Saturday, August 28, 1582: New Moon 7:54am (CEST) Sunday, September 5, 1582: First Quarter Moon 11:49am (CEST) Sunday, September 12, 1582: Full Moon 2:20pm (CEST) Sunday, September 19, 1582: Last Quarter Moon 4:56am (CEST) Sunday, September 26, 1582: New Moon 11:35pm (CEST) Tuesday, October 5, 1582: First Quarter Moon 3:27am (CEST) Monday, October 11, 1582: Full Moon 10:56pm (CEST) ~~~~~~~~~~~~~~~~~~ before 15-OCT-1582 results WRONG ~~~~~~~~~~ Monday, October 18, 1582: Last Quarter Moon 4:10pm (CEST) Tuesday, October 26, 1582: New Moon 5:15pm (CEST) ---------------------------------------- NASA (1501-1600) ---------------------------------------- Year New Moon First Quarter Full Moon Last Quarter ΔT
1582 Jan 1 14:59 Jan 8 22:23 p Jan 17 02:02 00h02m
Jan 24 08:56 Jan 30 23:59 Feb 7 16:08 Feb 15 20:26
Feb 22 19:21 Mar 1 10:47 Mar 9 10:02 Mar 17 11:05
Mar 24 04:08 Mar 30 23:42 Apr 8 02:55 Apr 15 21:43
Apr 22 12:04 Apr 29 14:31 May 7 18:04 May 15 04:52
May 21 20:11 May 29 06:41 Jun 6 07:11 n Jun 13 09:46
Jun 20 05:26 T Jun 27 23:40 Jul 5 18:18 n Jul 12 13:59
Jul 19 16:32 Jul 27 16:56 Aug 4 03:48 Aug 10 19:10
Aug 18 05:53 Aug 26 09:47 Sep 2 12:23 Sep 9 02:51
Sep 16 21:34 Sep 25 01:26 Oct 1 20:59 Oct 18 14:05
Oct 26 15:15 Nov 3 15:06 Nov 10 06:30 Nov 17 05:17
Nov 25 09:57 Dec 3 02:23 Dec 9 17:31 n Dec 17 00:03
Dec 25 04:09 A
----------------------------------------cheers, Frank Scherie |
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