Perhaps. It's interesting that the weewx docs have an example of renaming 
'luminosity' to 'illuminance' (link) 
<https://www.weewx.com/docs/5.1/utilities/weectl-database/?h=luminosity#rename-an-observation-type>
 and 
mention if for one model of fousb only.

   - https://en.wikipedia.org/wiki/Luminosity - energy per unit of time (W)
   - https://en.wikipedia.org/wiki/Solar_irradiance  - energy per unit of 
   area (W/m2)
   - https://en.wikipedia.org/wiki/Illuminance (aka brightness) in lux - 
   https://en.wikipedia.org/wiki/Lux

FWIW as an example - a WeatherFlow station emits 'solar_radiation' and 
'illuminance' readings from the hardware. They report them as W/m2 and lux 
respectively.  Weewx group_radiation uses W/m2 for 'radiation' and 
'maxSolarRad' and group_illuminance uses lux for 'illuminance' if that 
helps any.

There was a long discussion in jan-2019 (wow) in the WF dev forum about the 
differences.  That particular gear derives radiation from the brightness 
and uv sensors in the hardware.  Guess every vendor does it their own way.

I think you talked my 'perhaps' above into a 'probably yes'.

On Friday, November 22, 2024 at 11:23:06 AM UTC-8 Steeple Ian wrote:

> In the current WeeWX repository.
>
> I am looking at wview_extended.py in the /scr/schemas folder. On line 77: -
>
> ('luminosity' ,     'REAL'),
>
> Am I correct in thinking that this may be incorrect and should actually be 
> 'illuminance'?
>
> Thanks,
> Ian
>

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