There is a formula in weeutil.Moon.py that divides the full cycle (month) of the moon into 8 equidistant parts. Each part is 12.5% of the time (month). That applies to full moon and new moon as well.
Steeple Ian schrieb am Mittwoch, 20. November 2024 um 08:06:08 UTC+1: > Gary, > > The English version is here: - > > https://en.wikipedia.org/wiki/Lunar_phase > > Ian > > On Wednesday, November 20, 2024 at 4:58:01 AM UTC Dave Vaughan wrote: > >> How about using https://de.wikipedia.org/wiki/Mondphase as a starting >> point. The link points to the German page, but in the left column you will >> find many languages. >> >> Dave Vaughan >> On 20/11/2024 04:17, gjr80 wrote: >> >> I suspect you will find the 'granularity' in the calculation used by >> WeeWX to determine where we are in the lunar cycle in percentage terms is >> the main factor that contributes to 'delays' in WeeWX displaying the Moon >> phase. It would also not surprise me that, depending on the time of day of >> full moon (ie the precise point in time when the Moon is fully illuminated >> rather than the ill-defined period where the Moon is said to be 'full'), >> this delay can be seen to be exacerbated on occasions. >> >> We could of course look at changing the calculations used by WeeWX; >> perhaps someone might like to start by providing clear definitions of the 8 >> Moon phases used by WeeWX. >> >> Gary >> >> -- >> You received this message because you are subscribed to the Google Groups >> "weewx-user" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to weewx-user+...@googlegroups.com. >> To view this discussion visit >> https://groups.google.com/d/msgid/weewx-user/4f9580d1-e022-42e8-b8a1-36a1f7059c2bn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/weewx-user/4f9580d1-e022-42e8-b8a1-36a1f7059c2bn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> >> >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> >> >> Virus-free.www.avg.com >> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> >> >> <#m_-3676690411299832037_m_5908966975897224055_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >> > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/efd268d4-b313-4294-9581-a5a7bbd4f39cn%40googlegroups.com.
