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bug#61460: 30.0.50; Calendar shows eclipse for quarter moon
From: |
Eli Zaretskii |
Subject: |
bug#61460: 30.0.50; Calendar shows eclipse for quarter moon |
Date: |
Mon, 13 Feb 2023 05:24:47 +0200 |
> 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.
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Ulrich Mueller, 2023/02/12
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Ulrich Müller, 2023/02/12
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Michael Heerdegen, 2023/02/12
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Michael Heerdegen, 2023/02/12
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Michael Heerdegen, 2023/02/13
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Michael Heerdegen, 2023/02/13
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Ulrich Mueller, 2023/02/13
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Michael Heerdegen, 2023/02/13
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Michael Heerdegen, 2023/02/13
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Ulrich Mueller, 2023/02/13
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Michael Heerdegen, 2023/02/13
- bug#61460: 30.0.50; Calendar shows eclipse for quarter moon, Eli Zaretskii, 2023/02/13