From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ulrich Mueller Newsgroups: gmane.emacs.bugs Subject: bug#61460: 30.0.50; Calendar shows eclipse for quarter moon Date: Mon, 13 Feb 2023 10:34:00 +0100 Message-ID: References: <87sffab61y.fsf@web.de> <87cz6eb10y.fsf@web.de> <87r0uu9e5v.fsf@web.de> <87mt5i9cba.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36372"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) Cc: 61460@debbugs.gnu.org To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Feb 13 10:35:53 2023 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pRVFY-0009DP-Qq for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 13 Feb 2023 10:35:52 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pRVF1-0005KE-Iz; Mon, 13 Feb 2023 04:35:20 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRVEl-00057U-64 for bug-gnu-emacs@gnu.org; Mon, 13 Feb 2023 04:35:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pRVEk-0008Mn-MM for bug-gnu-emacs@gnu.org; Mon, 13 Feb 2023 04:35:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pRVEk-0000ym-FS for bug-gnu-emacs@gnu.org; Mon, 13 Feb 2023 04:35:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Ulrich Mueller Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 13 Feb 2023 09:35:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 61460 X-GNU-PR-Package: emacs Original-Received: via spool by 61460-submit@debbugs.gnu.org id=B61460.16762808533696 (code B ref 61460); Mon, 13 Feb 2023 09:35:02 +0000 Original-Received: (at 61460) by debbugs.gnu.org; 13 Feb 2023 09:34:13 +0000 Original-Received: from localhost ([127.0.0.1]:47660 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pRVDx-0000xY-Eh for submit@debbugs.gnu.org; Mon, 13 Feb 2023 04:34:13 -0500 Original-Received: from woodpecker.gentoo.org ([140.211.166.183]:38332 helo=smtp.gentoo.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pRVDu-0000xH-U6 for 61460@debbugs.gnu.org; Mon, 13 Feb 2023 04:34:12 -0500 In-Reply-To: <87mt5i9cba.fsf@web.de> (Michael Heerdegen's message of "Mon, 13 Feb 2023 09:52:57 +0100") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:255475 Archived-At: >>>>> On Mon, 13 Feb 2023, Michael Heerdegen wrote: >> Ok, thanks. So the input value is the longitude? > Which (unless I'm misunderstanding in what coordinate system we are > here) would be bad, since the longitude of the lunar nodes is not > constant (the nodes travel along the ecliptic in only 18.6 years)...? No, it is the "argument of latitude" (and yes, the nomenclature is slighly confusing). Its value is 0=C2=B0 for the ascending node, which is what we want. https://en.wikipedia.org/wiki/Argument_of_latitude | It is the sum of the more commonly used true anomaly and argument | of periapsis.