I am also using MQTT realtime data - my Belchertown skin continues to show 
24%. The my Standard skin also shows 24% for me. As I'm in the US, I am 
using US for the units. As I mentioned earlier I ran pip install pyephem, 
then stopped and started weewx. 

Also, I'm running weewx on a Raspberry Pi Zero W. It's got the latest 
version of Raspbian and weewx 3.8.2.

For what it's worth I had previously installed ephem (not pyephem) with pip 
install ephem. I was obviously confused about the two (still am, I guess). 
But after Thomas said to install pyephem and you indicated success when 
doing that, I installed that package.

Best,
Phil

On Saturday, September 15, 2018 at 9:22:21 PM UTC-4, Colin Larsen wrote:
>
> Philip, interestingly although at one stage I did see the 34% value I 
> reported it then changed to the 24% that you have (and I did have) - not 
> sure what that's about.
>
> I did nothing other than installing, restarting Weewx and waiting an 
> archive period
>
> In terms of difference between your site and mine (both running 
> Belchertown skins) I have metric set and am using the mqtt real-time update 
> system. I have no idea if either of those is pertinent or if the Moon data 
> is even included in the real-time data.
>
> Cheers
> Colin
>
> On Sun, Sep 16, 2018 at 1:02 PM Philip Kutzenco <[email protected] 
> <javascript:>> wrote:
>
>> No joy for me. I must be doing something wrong. I installed pyephem (pip 
>> install pyephem). Then I stopped and started weewx. My standard and 
>> belchertown skins still show 24% even after waiting for a couple of archive 
>> intervals. Is there someplace I tell weewx to use pyephem? I did clear the 
>> cache on my browser to be sure it isn't that.
>>
>> Phil
>>
>> On Saturday, September 15, 2018 at 8:14:57 PM UTC-4, Thomas Keffer wrote:
>>>
>>> Yes, like Colin, you must not be using pyephem. As mentioned earlier in 
>>> this thread, I've created issue #342 
>>> <https://github.com/weewx/weewx/issues/342> to track this.
>>>
>>> In the meantime, try installing pyephem.
>>>
>>> -tk
>>>
>>> On Sat, Sep 15, 2018 at 5:11 PM Philip Kutzenco <[email protected]> 
>>> wrote:
>>>
>>>> Thomas,
>>>>
>>>> Thanks for replying. My website isn't published externally, but I've 
>>>> attached a screenshot of part of the Standard skin display. I'm pretty 
>>>> sure 
>>>> it isn't cached. Also, take a look at Pat's 
>>>> http://www.belchertownweather.com website. Both my standard skin (as 
>>>> well as my implementation of the belchertown skin) and Pat's skin show 24% 
>>>> today.
>>>>
>>>> Phil
>>>>
>>>> On Saturday, September 15, 2018 at 7:26:30 PM UTC-4, Thomas Keffer 
>>>> wrote:
>>>>>
>>>>> Can't help you with the first of your two questions.
>>>>>
>>>>> Regarding the second, when I look at my own skin 
>>>>> <http://www.threefools.org/weewx/>, it shows 41% for today. Are you 
>>>>> sure you're not looking at an old, perhaps cached, version?
>>>>>
>>>>> -tk
>>>>>
>>>>> On Sat, Sep 15, 2018 at 2:45 PM Philip Kutzenco <[email protected]> 
>>>>> wrote:
>>>>>
>>>>>> I've noticed that some information from the DarkSky API as well as 
>>>>>> calculated moon phase don't seem to be correct or consistent with other 
>>>>>> sources of data on WeeWX. Here's what I have seen:
>>>>>>
>>>>>> *DarkSky API* - I display a minimal 8 day forecast on the 
>>>>>> Belchertown Skin. When I pull down the values using the SPI directly 
>>>>>> with 
>>>>>> my lat and long, the values pulled down match what the skin shows. 
>>>>>> However, 
>>>>>> If I go to DarkSky.net using the same location, the values (like min 
>>>>>> & max temp, weather icon, precip probability etc.) are usually very 
>>>>>> different. I'm pretty tuned into the weather right now as I live in 
>>>>>> Western 
>>>>>> North Carolina and will be impacted by the remains of Florence over the 
>>>>>> next several days. What's going on with the DarkSky API?
>>>>>>
>>>>>> *Moon phase* - WeeWX shows the moon phase for today to be a waxing 
>>>>>> crescent - 24% (I think that means 24% visible or illuminated). When I 
>>>>>> do 
>>>>>> the calculation using python's ephem module - 
>>>>>> *print(ephem.Moon(datetime.date.today()).moon_phase)* - the answer I 
>>>>>> get for moon phase is 31.19%. I thought that WeeWX used ephem for that 
>>>>>> calculation. On timeanddate.com today's moon phase is 39.5%. At 
>>>>>> http://aa.usno.navy.mil, 37% of the moon is illuminated today. Why 
>>>>>> such a variation?
>>>>>>
>>>>>> These two items are vexing me. Can someone help explain these 
>>>>>> anomalies?
>>>>>>
>>>>>> Phil
>>>>>>
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