[time-nuts] Re: Brain Burp re Noon and the Sun!

[Peter Vince]

I can see how you are thinking Clive, so I wonder if the (hopefully!)
attached image will help.  (A picture is worth a thousand words!)  I found
an image online with lines of latitude and longitude, shown at a tilt,
similar to the Earth at the Spring or Autumn equinoxes, as viewed from the
orbital plane.  I've added a red line which is perpendicular to that plane,
which I believe is what you are thinking would represent solar noon.
However, the blue line shows the axis of rotation, and even at extreme
latitudes. places along the same line of longitude will be closest to the
sun at the same moment.  (If I have understood things correctly?)

     Regards,

          Peter Vince


On Thu, 23 Nov 2023 at 12:16, Clive S Carver via time-nuts <
time-nuts at lists.febo.com> wrote:
>
> Have I misunderstood "Local Meridian"?
>
> I was thinking that it was a line of Longitude (passing through the North
&
> South Poles of the Earth, (as does the Greenwich Meridian), with the
> locations of interest on it. But Googling "Local Meridian" gives me
> something else involving the Celestial Sphere. Ie The Local Meridian is an
> imaginary Great Circle on the Celestial Sphere that is perpendicular to
the
> local Horizon. It passes through the North point on the Horizon, through
the
> Celestial Pole, up to the Zenith, and through the South point on the
> Horizon.
>
> In other words what I am trying to find out is whether solar noon would be
> at the same instant at say, 50.0N 3.0W and 55.0N 3.0W?
>
> Many thanks.
>
> Clive
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