This will be handy provided it works, I have had a few extra stars that I
wanted to include in some reports. Some I have picked up by downloading the
latest stars.py from the pyephem repo but there are others that are not
included in pyephem. This gives me a suitable way to add them.
Gary
On Sunday, 20 January 2019 10:28:33 UTC+10, Thomas Keffer wrote:
>
> This is a good question, and it took me a while to figure out how to work
> around the limitations of pyephem. Try this:
>
> 1. Put the following in user/extensions.py:
>
> import ephem
> eros = ephem.readdb("433
> Eros,e,10.8276,304.3222,178.8165,1.457940,0.5598795,0.22258902,71.2803,09/04.0/2017,2000,H11.16,0.46")
> ephem.Eros = eros
>
> 2. Modify the WeeWX module weewx/almanac.py so that the function
> _get_ephem_body() looks like this:
>
> def _get_ephem_body(heavenly_body):
> # The library 'ephem' refers to heavenly bodies using a capitalized
> # name. For example, the module used for 'mars' is 'ephem.Mars'.
> cap_name = heavenly_body.capitalize()
>
> # If the heavenly body is a star, or if the body does not exist, then
> an
> # exception will be raised. Be prepared to catch it.
> try:
> ephem_body = getattr(ephem, cap_name)()
> except AttributeError:
> # That didn't work. Try a star. If this doesn't work either,
> # then a KeyError exception will be raised.
> ephem_body = ephem.star(cap_name)
> except TypeError:
> ephem_body = getattr(ephem, cap_name)
>
> return ephem_body
>
> You are adding the two highlighted lines.
>
> 3. Then use this in your template:
>
> $almanac.eros.rise
>
> for when it rises, etc. (treat it just like any other planet).
>
> Double check the answer. I'm not 100% confident this will work. If it
> does, I'll add the changes for weewx/almanac.py to the code base.
>
> -tk
>
> On Sat, Jan 19, 2019 at 10:20 AM Paul Bartholdi <paul.ba...@gmail.com
> <javascript:>> wrote:
>
>> Hi,
>>
>> I nodified a few years ago the "Standard/index.html.tmpl" to print the
>> main solar systems objects (sun, moon, Jupiter...).
>> Now I want to pint the same informations but for the minor planet Eros
>> that pass very (very relative!) the earth in the few next days.
>> This implies adding the python line:
>>
>> eros = ephem.readdb("433
>> Eros,e,10.8276,304.3222,178.8165,1.457940,0.5598795,0.22258902,71.2803,09/04.0/2017,2000,H11.16,0.46")
>>
>> and then (in index.html.tmp) :
>>
>> <tr>
>> <td class="label">Rise :</td>
>> <td class="data">$almanac.eros.rise</td>
>> </tr>
>>
>> Where should I add the " eros = ephem.readdb(...) line ? (
>> index.html.tmpl ? almanac.py ? elsewhere ?).
>>
>> Thanks for any help/advice! Paul
>>
>>
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