I will look into it the next days. Tomasz Lewicki schrieb am Mittwoch, 15. Oktober 2025 um 10:05:52 UTC+2:
> Dear group. > > Yesterday I upgraded two of my three stations to Weewx 5.2 and encountered > strange problem (bug?) with new almanac module. On first glance everything > works good, data are presented as before but I've noticed that moonrise is > incorrectly calculated. I use timeanddate.com to check my calculations. I > provide data for one of the two stations from Weewx 5.2, as they are > located approximately 3 km apart. > > Now the numbers: > > Station 1: latitude = 50.70737, longitude = 16.22252. Weewx 5.2 with > weewx-skyfield-almanac installed and enabled shows for today (15.10.2025) > moonrise at 01:20:49, moonset at 16:10:39. Station 2, approx. 20 km NE from > station 1. Weewx 5.2 with weewx-skyfield-almanac installed and enabled > shows for today (15.10.2025) moonrise at 01:19:32, moonset at 16:10:19. > timeanddate.com for nearby bigger city (approx. 10 km north) shows > accordingly 00:00 and 16:10. Culmination, sunrise and sunset are OK for > both stations. > > Third station cannot be upgraded because OS there couldn't find source for > python3-skyfield module and this station is still working with Weewx 5.1 > and PyEphem. Moonrise and moonset for this location are as follows: > 00:00:07 and 16:10:38 - and this is correct. > > I'm sure that for station 1 and 2 (Weewx 5.2) skyfield module does the > calculations because solstices and equinoxes are perfectly equal up to > single second but third station (Weewx 5.1 and PyEphem) shows differences > of a few seconds. > -- 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 [email protected]. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/9112d7c6-06bd-4732-81b6-3e50b510984bn%40googlegroups.com.
