From: Eli Zaretskii <eliz@gnu.org>
To: Ulrich Mueller <ulm@gentoo.org>
Cc: 61460@debbugs.gnu.org
Subject: bug#61460: 30.0.50; Calendar shows eclipse for quarter moon
Date: Mon, 13 Feb 2023 05:24:47 +0200 [thread overview]
Message-ID: <83r0uufds0.fsf@gnu.org> (raw)
In-Reply-To: <ufsbad1te@gentoo.org> (message from Ulrich Mueller on Sun, 12 Feb 2023 22:13:49 +0100)
> From: Ulrich Mueller <ulm@gentoo.org>
> Cc: 61460@debbugs.gnu.org
> Date: Sun, 12 Feb 2023 22:13:49 +0100
>
> >>>>> On Sun, 12 Feb 2023, Eli Zaretskii wrote:
>
> > Thanks, but what about
>
> > https://debbugs.gnu.org/cgi/bugreport.cgi?bug=20414#14
>
> > It sounds like the "impossible" argument was already voiced in that
> > discussion?
>
> Indeed, and it was ignored. :(
>
> An eclipse can only occur when the three bodies (Sun, Earth, and Moon)
> are in a straight line configuration. Which is the case for new moon and
> full moon, but not for quarter moon.
>
> See also https://eclipse.gsfc.nasa.gov/LEdecade/LEdecade2021.html which
> lists 2023-05-05 and 2023-10-28 as the only dates of lunar eclipses in
> 2023, but _not_ 2023-01-28. That output of Calendar is definitely wrong.
Fine, then please install this on the emacs-29 branch (assuming all
the tests still pass after the change), and thanks.
next prev parent reply other threads:[~2023-02-13 3:24 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-12 19:57 bug#61460: 30.0.50; Calendar shows eclipse for quarter moon Ulrich Mueller
2023-02-12 20:07 ` Ulrich Müller
2023-02-12 20:19 ` Eli Zaretskii
2023-02-12 21:13 ` Ulrich Mueller
2023-02-13 3:24 ` Eli Zaretskii [this message]
2023-02-13 3:25 ` Michael Heerdegen
2023-02-13 4:52 ` Michael Heerdegen
2023-02-13 5:13 ` Michael Heerdegen
2023-02-13 6:01 ` Michael Heerdegen
2023-02-13 7:28 ` Ulrich Mueller
2023-02-13 8:13 ` Michael Heerdegen
2023-02-13 8:52 ` Michael Heerdegen
2023-02-13 9:34 ` Ulrich Mueller
2023-02-13 10:04 ` Michael Heerdegen
2023-02-13 13:03 ` Eli Zaretskii
2023-02-13 13:30 ` Ulrich Mueller
2023-02-13 14:05 ` Eli Zaretskii
2023-02-14 5:30 ` Michael Heerdegen
2023-02-14 7:59 ` Ulrich Mueller
2023-02-14 9:15 ` Michael Heerdegen
2023-02-14 10:22 ` Ulrich Müller
2023-02-14 10:56 ` Michael Heerdegen
2023-02-16 20:26 ` Ulrich Müller
2023-02-17 5:25 ` Michael Heerdegen
2023-02-17 7:03 ` Ulrich Müller
2023-02-17 7:20 ` Michael Heerdegen
2023-02-18 5:53 ` Michael Heerdegen
2023-02-18 8:56 ` Ulrich Mueller
2023-02-18 9:16 ` Michael Heerdegen
2023-02-21 15:15 ` Michael Heerdegen
2023-02-22 9:00 ` Ulrich Mueller
2023-02-22 9:45 ` Andreas Schwab
2023-02-22 10:03 ` Michael Heerdegen
2023-02-22 11:32 ` Ulrich Mueller
2023-02-22 14:19 ` Michael Heerdegen
2023-02-22 15:46 ` Ulrich Mueller
2023-02-22 16:26 ` Michael Heerdegen
2023-02-25 16:13 ` Michael Heerdegen
2023-02-14 13:31 ` Eli Zaretskii
2023-02-14 10:49 ` Ulrich Mueller
2023-02-13 6:21 ` Ulrich Mueller
2023-02-13 7:08 ` Michael Heerdegen
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