Hello there,
I recently started using MH (again) and I noticed the moonphase is
wrongly calculated.
Upon startup on June 26th 2009, MH displays:
Latitude: 123.45, Longitude: 54.321, Time Zone: 0
sunrise=6:26 sunset=22:58
sunrise twilight=5:40 sunset twilight=23:44
The moon is One-Quarter Waxing, 20% bright, and 4 days old
The next full moon is on Thursday, August 6th
As a moonmonth lasts a little less than a normal month, it is very
strange the next full moon is being calculated to be on August 6th.
According to several different sources, it should be July 7th.
So, I investigated...
This bug is present in the current stable release, and in the latest
SVN version.
In bin/mh there is a function "set_moon_data", and is says:
my @phases = Astro::MoonPhase::phasehunt($Time + 3600*24*30);
So the parameter is $Time plus 1 month.
I changed it to:
my @phases = Astro::MoonPhase::phasehunt($Time);
And it "seems" to be OK for now:
Latitude: 123.45, Longitude: 54.321, Time Zone: 0
sunrise=6:26 sunset=22:58
sunrise twilight=5:40 sunset twilight=23:44
The moon is One-Quarter Waxing, 20% bright, and 4 days old
The next full moon is on Tuesday, July 7th
As I don't understand the code and I don't know why the parameter is 1
month in the future, I don't know if this is a good fix.
It might break other stuff...
Cheers,
Johan.
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